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Finding the Fourth Proportional to 3,988.59, 5,983.53 and 1,356.33

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Solution

The fourth proportional to 3,988.59, 5,983.53 and 1,356.33 is: 2,034.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.59 : 5,983.53 = 1,356.33 : x
  2. Step 2: Convert to fraction form
    3,988.59/5,983.53 = 1,356.33/x
  3. Step 3: Cross multiply
    3,988.59x = 5,983.53 × 1,356.33
  4. Step 4: Simplify right side
    3,988.59x = 8,115,641.24
  5. Step 5: Solve for x
    x = 8,115,641.24/3,988.59
  6. Step 6: Final answer
    x = 2,034.71

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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.