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Finding the Fourth Proportional to 5,938.52, 8,908.68 and 1,988.55

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Solution

The fourth proportional to 5,938.52, 8,908.68 and 1,988.55 is: 2,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.52 : 8,908.68 = 1,988.55 : x
  2. Step 2: Convert to fraction form
    5,938.52/8,908.68 = 1,988.55/x
  3. Step 3: Cross multiply
    5,938.52x = 8,908.68 × 1,988.55
  4. Step 4: Simplify right side
    5,938.52x = 17,715,363.07
  5. Step 5: Solve for x
    x = 17,715,363.07/5,938.52
  6. Step 6: Final answer
    x = 2,983.13

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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.