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Finding the Fourth Proportional to 1,702.47, 2,349.39 and 956.46

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Solution

The fourth proportional to 1,702.47, 2,349.39 and 956.46 is: 1,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.47 : 2,349.39 = 956.46 : x
  2. Step 2: Convert to fraction form
    1,702.47/2,349.39 = 956.46/x
  3. Step 3: Cross multiply
    1,702.47x = 2,349.39 × 956.46
  4. Step 4: Simplify right side
    1,702.47x = 2,247,097.56
  5. Step 5: Solve for x
    x = 2,247,097.56/1,702.47
  6. Step 6: Final answer
    x = 1,319.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.