Home / 2,387.30-3,581.05-655.92

Finding the Fourth Proportional to 2,387.30, 3,581.05 and 655.92

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Solution

The fourth proportional to 2,387.30, 3,581.05 and 655.92 is: 983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.30 : 3,581.05 = 655.92 : x
  2. Step 2: Convert to fraction form
    2,387.30/3,581.05 = 655.92/x
  3. Step 3: Cross multiply
    2,387.30x = 3,581.05 × 655.92
  4. Step 4: Simplify right side
    2,387.30x = 2,348,880.68
  5. Step 5: Solve for x
    x = 2,348,880.68/2,387.30
  6. Step 6: Final answer
    x = 983.91

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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.