Home / 2,487.30-3,724.47-1,327.38

Finding the Fourth Proportional to 2,487.30, 3,724.47 and 1,327.38

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Solution

The fourth proportional to 2,487.30, 3,724.47 and 1,327.38 is: 1,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.30 : 3,724.47 = 1,327.38 : x
  2. Step 2: Convert to fraction form
    2,487.30/3,724.47 = 1,327.38/x
  3. Step 3: Cross multiply
    2,487.30x = 3,724.47 × 1,327.38
  4. Step 4: Simplify right side
    2,487.30x = 4,943,786.99
  5. Step 5: Solve for x
    x = 4,943,786.99/2,487.30
  6. Step 6: Final answer
    x = 1,987.61

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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.