Home / 3,966.39-5,938.64-2,989.53

Finding the Fourth Proportional to 3,966.39, 5,938.64 and 2,989.53

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Solution

The fourth proportional to 3,966.39, 5,938.64 and 2,989.53 is: 4,476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.39 : 5,938.64 = 2,989.53 : x
  2. Step 2: Convert to fraction form
    3,966.39/5,938.64 = 2,989.53/x
  3. Step 3: Cross multiply
    3,966.39x = 5,938.64 × 2,989.53
  4. Step 4: Simplify right side
    3,966.39x = 17,753,727.49
  5. Step 5: Solve for x
    x = 17,753,727.49/3,966.39
  6. Step 6: Final answer
    x = 4,476.04

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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.