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Finding the Fourth Proportional to 2,691.92, 3,706.81 and 2,495.90

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Solution

The fourth proportional to 2,691.92, 3,706.81 and 2,495.90 is: 3,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.92 : 3,706.81 = 2,495.90 : x
  2. Step 2: Convert to fraction form
    2,691.92/3,706.81 = 2,495.90/x
  3. Step 3: Cross multiply
    2,691.92x = 3,706.81 × 2,495.90
  4. Step 4: Simplify right side
    2,691.92x = 9,251,802.31
  5. Step 5: Solve for x
    x = 9,251,802.31/2,691.92
  6. Step 6: Final answer
    x = 3,436.89

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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.