Home / 6,240.17-8,609.36-4,116.76

Finding the Fourth Proportional to 6,240.17, 8,609.36 and 4,116.76

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Solution

The fourth proportional to 6,240.17, 8,609.36 and 4,116.76 is: 5,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.17 : 8,609.36 = 4,116.76 : x
  2. Step 2: Convert to fraction form
    6,240.17/8,609.36 = 4,116.76/x
  3. Step 3: Cross multiply
    6,240.17x = 8,609.36 × 4,116.76
  4. Step 4: Simplify right side
    6,240.17x = 35,442,649.92
  5. Step 5: Solve for x
    x = 35,442,649.92/6,240.17
  6. Step 6: Final answer
    x = 5,679.75

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Find fourth proportional to 3,120.09, 4,304.68 and 2,058.38
Half scale
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Double scale
Find fourth proportional to 6,241.17, 8,610.74 and 4,117.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.