Home / 2,388.28-3,581.22-926.68

Finding the Fourth Proportional to 2,388.28, 3,581.22 and 926.68

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Solution

The fourth proportional to 2,388.28, 3,581.22 and 926.68 is: 1,389.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.28 : 3,581.22 = 926.68 : x
  2. Step 2: Convert to fraction form
    2,388.28/3,581.22 = 926.68/x
  3. Step 3: Cross multiply
    2,388.28x = 3,581.22 × 926.68
  4. Step 4: Simplify right side
    2,388.28x = 3,318,644.95
  5. Step 5: Solve for x
    x = 3,318,644.95/2,388.28
  6. Step 6: Final answer
    x = 1,389.55

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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.