Home / 6,278.88-8,657.37-5,156.22

Finding the Fourth Proportional to 6,278.88, 8,657.37 and 5,156.22

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Solution

The fourth proportional to 6,278.88, 8,657.37 and 5,156.22 is: 7,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.88 : 8,657.37 = 5,156.22 : x
  2. Step 2: Convert to fraction form
    6,278.88/8,657.37 = 5,156.22/x
  3. Step 3: Cross multiply
    6,278.88x = 8,657.37 × 5,156.22
  4. Step 4: Simplify right side
    6,278.88x = 44,639,304.34
  5. Step 5: Solve for x
    x = 44,639,304.34/6,278.88
  6. Step 6: Final answer
    x = 7,109.44

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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.