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Finding the Fourth Proportional to 1,758.72, 2,641.08 and 1,613.70

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Solution

The fourth proportional to 1,758.72, 2,641.08 and 1,613.70 is: 2,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.72 : 2,641.08 = 1,613.70 : x
  2. Step 2: Convert to fraction form
    1,758.72/2,641.08 = 1,613.70/x
  3. Step 3: Cross multiply
    1,758.72x = 2,641.08 × 1,613.70
  4. Step 4: Simplify right side
    1,758.72x = 4,261,910.80
  5. Step 5: Solve for x
    x = 4,261,910.80/1,758.72
  6. Step 6: Final answer
    x = 2,423.30

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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.