Home / 6,240.40-8,611.38-3,407.22

Finding the Fourth Proportional to 6,240.40, 8,611.38 and 3,407.22

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Solution

The fourth proportional to 6,240.40, 8,611.38 and 3,407.22 is: 4,701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.40 : 8,611.38 = 3,407.22 : x
  2. Step 2: Convert to fraction form
    6,240.40/8,611.38 = 3,407.22/x
  3. Step 3: Cross multiply
    6,240.40x = 8,611.38 × 3,407.22
  4. Step 4: Simplify right side
    6,240.40x = 29,340,866.16
  5. Step 5: Solve for x
    x = 29,340,866.16/6,240.40
  6. Step 6: Final answer
    x = 4,701.76

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Half scale
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Double scale
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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.