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Finding the Fourth Proportional to 1,702.12, 2,349 and 956.02

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Solution

The fourth proportional to 1,702.12, 2,349 and 956.02 is: 1,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.12 : 2,349 = 956.02 : x
  2. Step 2: Convert to fraction form
    1,702.12/2,349 = 956.02/x
  3. Step 3: Cross multiply
    1,702.12x = 2,349 × 956.02
  4. Step 4: Simplify right side
    1,702.12x = 2,245,690.98
  5. Step 5: Solve for x
    x = 2,245,690.98/1,702.12
  6. Step 6: Final answer
    x = 1,319.35

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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.