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Finding the Fourth Proportional to 1,702.28, 2,348.86 and 956.22

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Solution

The fourth proportional to 1,702.28, 2,348.86 and 956.22 is: 1,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.28 : 2,348.86 = 956.22 : x
  2. Step 2: Convert to fraction form
    1,702.28/2,348.86 = 956.22/x
  3. Step 3: Cross multiply
    1,702.28x = 2,348.86 × 956.22
  4. Step 4: Simplify right side
    1,702.28x = 2,246,026.91
  5. Step 5: Solve for x
    x = 2,246,026.91/1,702.28
  6. Step 6: Final answer
    x = 1,319.42

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1.5x scale

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.