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Finding the Fourth Proportional to 7,489.84, 10,335.96 and 4,132.68

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Solution

The fourth proportional to 7,489.84, 10,335.96 and 4,132.68 is: 5,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.84 : 10,335.96 = 4,132.68 : x
  2. Step 2: Convert to fraction form
    7,489.84/10,335.96 = 4,132.68/x
  3. Step 3: Cross multiply
    7,489.84x = 10,335.96 × 4,132.68
  4. Step 4: Simplify right side
    7,489.84x = 42,715,215.17
  5. Step 5: Solve for x
    x = 42,715,215.17/7,489.84
  6. Step 6: Final answer
    x = 5,703.09

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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.