Home / 3,587.87-5,381.77-2,125.97

Finding the Fourth Proportional to 3,587.87, 5,381.77 and 2,125.97

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Solution

The fourth proportional to 3,587.87, 5,381.77 and 2,125.97 is: 3,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.87 : 5,381.77 = 2,125.97 : x
  2. Step 2: Convert to fraction form
    3,587.87/5,381.77 = 2,125.97/x
  3. Step 3: Cross multiply
    3,587.87x = 5,381.77 × 2,125.97
  4. Step 4: Simplify right side
    3,587.87x = 11,441,481.57
  5. Step 5: Solve for x
    x = 11,441,481.57/3,587.87
  6. Step 6: Final answer
    x = 3,188.93

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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.