Home / 4,161.39-6,242.36-1,387.95

Finding the Fourth Proportional to 4,161.39, 6,242.36 and 1,387.95

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Solution

The fourth proportional to 4,161.39, 6,242.36 and 1,387.95 is: 2,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.39 : 6,242.36 = 1,387.95 : x
  2. Step 2: Convert to fraction form
    4,161.39/6,242.36 = 1,387.95/x
  3. Step 3: Cross multiply
    4,161.39x = 6,242.36 × 1,387.95
  4. Step 4: Simplify right side
    4,161.39x = 8,664,076.62
  5. Step 5: Solve for x
    x = 8,664,076.62/4,161.39
  6. Step 6: Final answer
    x = 2,082.02

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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.