Home / 2,400.28-3,600.18-939.16

Finding the Fourth Proportional to 2,400.28, 3,600.18 and 939.16

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Solution

The fourth proportional to 2,400.28, 3,600.18 and 939.16 is: 1,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.28 : 3,600.18 = 939.16 : x
  2. Step 2: Convert to fraction form
    2,400.28/3,600.18 = 939.16/x
  3. Step 3: Cross multiply
    2,400.28x = 3,600.18 × 939.16
  4. Step 4: Simplify right side
    2,400.28x = 3,381,145.05
  5. Step 5: Solve for x
    x = 3,381,145.05/2,400.28
  6. Step 6: Final answer
    x = 1,408.65

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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.