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Finding the Fourth Proportional to 1,702.50, 2,349.38 and 956.49

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Solution

The fourth proportional to 1,702.50, 2,349.38 and 956.49 is: 1,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.50 : 2,349.38 = 956.49 : x
  2. Step 2: Convert to fraction form
    1,702.50/2,349.38 = 956.49/x
  3. Step 3: Cross multiply
    1,702.50x = 2,349.38 × 956.49
  4. Step 4: Simplify right side
    1,702.50x = 2,247,153.69
  5. Step 5: Solve for x
    x = 2,247,153.69/1,702.50
  6. Step 6: Final answer
    x = 1,319.91

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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.