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Finding the Fourth Proportional to 6,397.71, 8,820.88 and 5,337.02

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Solution

The fourth proportional to 6,397.71, 8,820.88 and 5,337.02 is: 7,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397.71 : 8,820.88 = 5,337.02 : x
  2. Step 2: Convert to fraction form
    6,397.71/8,820.88 = 5,337.02/x
  3. Step 3: Cross multiply
    6,397.71x = 8,820.88 × 5,337.02
  4. Step 4: Simplify right side
    6,397.71x = 47,077,212.98
  5. Step 5: Solve for x
    x = 47,077,212.98/6,397.71
  6. Step 6: Final answer
    x = 7,358.45

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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.