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Finding the Fourth Proportional to 6,491.40, 9,737.10 and 5,434.35

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Solution

The fourth proportional to 6,491.40, 9,737.10 and 5,434.35 is: 8,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491.40 : 9,737.10 = 5,434.35 : x
  2. Step 2: Convert to fraction form
    6,491.40/9,737.10 = 5,434.35/x
  3. Step 3: Cross multiply
    6,491.40x = 9,737.10 × 5,434.35
  4. Step 4: Simplify right side
    6,491.40x = 52,914,809.39
  5. Step 5: Solve for x
    x = 52,914,809.39/6,491.40
  6. Step 6: Final answer
    x = 8,151.53

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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.