Home / 2,400.48-3,599.13-939.78

Finding the Fourth Proportional to 2,400.48, 3,599.13 and 939.78

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Solution

The fourth proportional to 2,400.48, 3,599.13 and 939.78 is: 1,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.48 : 3,599.13 = 939.78 : x
  2. Step 2: Convert to fraction form
    2,400.48/3,599.13 = 939.78/x
  3. Step 3: Cross multiply
    2,400.48x = 3,599.13 × 939.78
  4. Step 4: Simplify right side
    2,400.48x = 3,382,390.39
  5. Step 5: Solve for x
    x = 3,382,390.39/2,400.48
  6. Step 6: Final answer
    x = 1,409.05

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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.