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Finding the Fourth Proportional to 3,988.68, 5,988.54 and 2,753.04

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Solution

The fourth proportional to 3,988.68, 5,988.54 and 2,753.04 is: 4,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.68 : 5,988.54 = 2,753.04 : x
  2. Step 2: Convert to fraction form
    3,988.68/5,988.54 = 2,753.04/x
  3. Step 3: Cross multiply
    3,988.68x = 5,988.54 × 2,753.04
  4. Step 4: Simplify right side
    3,988.68x = 16,486,690.16
  5. Step 5: Solve for x
    x = 16,486,690.16/3,988.68
  6. Step 6: Final answer
    x = 4,133.37

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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.