Home / 2,487.40-3,726.97-1,665.90

Finding the Fourth Proportional to 2,487.40, 3,726.97 and 1,665.90

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Solution

The fourth proportional to 2,487.40, 3,726.97 and 1,665.90 is: 2,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.40 : 3,726.97 = 1,665.90 : x
  2. Step 2: Convert to fraction form
    2,487.40/3,726.97 = 1,665.90/x
  3. Step 3: Cross multiply
    2,487.40x = 3,726.97 × 1,665.90
  4. Step 4: Simplify right side
    2,487.40x = 6,208,755.16
  5. Step 5: Solve for x
    x = 6,208,755.16/2,487.40
  6. Step 6: Final answer
    x = 2,496.08

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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.