Home / 2,400.12-3,600.63-939.18

Finding the Fourth Proportional to 2,400.12, 3,600.63 and 939.18

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Solution

The fourth proportional to 2,400.12, 3,600.63 and 939.18 is: 1,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.12 : 3,600.63 = 939.18 : x
  2. Step 2: Convert to fraction form
    2,400.12/3,600.63 = 939.18/x
  3. Step 3: Cross multiply
    2,400.12x = 3,600.63 × 939.18
  4. Step 4: Simplify right side
    2,400.12x = 3,381,639.68
  5. Step 5: Solve for x
    x = 3,381,639.68/2,400.12
  6. Step 6: Final answer
    x = 1,408.95

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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.