Home / 2,489.24-3,731.70-1,188.92

Finding the Fourth Proportional to 2,489.24, 3,731.70 and 1,188.92

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Solution

The fourth proportional to 2,489.24, 3,731.70 and 1,188.92 is: 1,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.24 : 3,731.70 = 1,188.92 : x
  2. Step 2: Convert to fraction form
    2,489.24/3,731.70 = 1,188.92/x
  3. Step 3: Cross multiply
    2,489.24x = 3,731.70 × 1,188.92
  4. Step 4: Simplify right side
    2,489.24x = 4,436,692.76
  5. Step 5: Solve for x
    x = 4,436,692.76/2,489.24
  6. Step 6: Final answer
    x = 1,782.35

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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.