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Finding the Fourth Proportional to 6,497.40, 9,755.70 and 5,038.20

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Solution

The fourth proportional to 6,497.40, 9,755.70 and 5,038.20 is: 7,564.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,497.40 : 9,755.70 = 5,038.20 : x
  2. Step 2: Convert to fraction form
    6,497.40/9,755.70 = 5,038.20/x
  3. Step 3: Cross multiply
    6,497.40x = 9,755.70 × 5,038.20
  4. Step 4: Simplify right side
    6,497.40x = 49,151,167.74
  5. Step 5: Solve for x
    x = 49,151,167.74/6,497.40
  6. Step 6: Final answer
    x = 7,564.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.