Home / 7,581.25-11,372.28-2,387.53

Finding the Fourth Proportional to 7,581.25, 11,372.28 and 2,387.53

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Solution

The fourth proportional to 7,581.25, 11,372.28 and 2,387.53 is: 3,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.25 : 11,372.28 = 2,387.53 : x
  2. Step 2: Convert to fraction form
    7,581.25/11,372.28 = 2,387.53/x
  3. Step 3: Cross multiply
    7,581.25x = 11,372.28 × 2,387.53
  4. Step 4: Simplify right side
    7,581.25x = 27,151,659.67
  5. Step 5: Solve for x
    x = 27,151,659.67/7,581.25
  6. Step 6: Final answer
    x = 3,581.42

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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.