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Finding the Fourth Proportional to 1,332.66, 2,002.53 and 716.82

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Solution

The fourth proportional to 1,332.66, 2,002.53 and 716.82 is: 1,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.66 : 2,002.53 = 716.82 : x
  2. Step 2: Convert to fraction form
    1,332.66/2,002.53 = 716.82/x
  3. Step 3: Cross multiply
    1,332.66x = 2,002.53 × 716.82
  4. Step 4: Simplify right side
    1,332.66x = 1,435,453.55
  5. Step 5: Solve for x
    x = 1,435,453.55/1,332.66
  6. Step 6: Final answer
    x = 1,077.13

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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.