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Finding the Fourth Proportional to 2,690.87, 3,713.32 and 1,495.85

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Solution

The fourth proportional to 2,690.87, 3,713.32 and 1,495.85 is: 2,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.87 : 3,713.32 = 1,495.85 : x
  2. Step 2: Convert to fraction form
    2,690.87/3,713.32 = 1,495.85/x
  3. Step 3: Cross multiply
    2,690.87x = 3,713.32 × 1,495.85
  4. Step 4: Simplify right side
    2,690.87x = 5,554,575.27
  5. Step 5: Solve for x
    x = 5,554,575.27/2,690.87
  6. Step 6: Final answer
    x = 2,064.23

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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.