Home / 1,603.15-2,402.83-724.62

Finding the Fourth Proportional to 1,603.15, 2,402.83 and 724.62

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Solution

The fourth proportional to 1,603.15, 2,402.83 and 724.62 is: 1,086.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.15 : 2,402.83 = 724.62 : x
  2. Step 2: Convert to fraction form
    1,603.15/2,402.83 = 724.62/x
  3. Step 3: Cross multiply
    1,603.15x = 2,402.83 × 724.62
  4. Step 4: Simplify right side
    1,603.15x = 1,741,138.67
  5. Step 5: Solve for x
    x = 1,741,138.67/1,603.15
  6. Step 6: Final answer
    x = 1,086.07

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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.