Home / 1,581.13-2,372.42-606.90

Finding the Fourth Proportional to 1,581.13, 2,372.42 and 606.90

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Solution

The fourth proportional to 1,581.13, 2,372.42 and 606.90 is: 910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.13 : 2,372.42 = 606.90 : x
  2. Step 2: Convert to fraction form
    1,581.13/2,372.42 = 606.90/x
  3. Step 3: Cross multiply
    1,581.13x = 2,372.42 × 606.90
  4. Step 4: Simplify right side
    1,581.13x = 1,439,821.70
  5. Step 5: Solve for x
    x = 1,439,821.70/1,581.13
  6. Step 6: Final answer
    x = 910.63

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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.