Home / 3,425.71-5,139.33-1,234.45

Finding the Fourth Proportional to 3,425.71, 5,139.33 and 1,234.45

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Solution

The fourth proportional to 3,425.71, 5,139.33 and 1,234.45 is: 1,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.71 : 5,139.33 = 1,234.45 : x
  2. Step 2: Convert to fraction form
    3,425.71/5,139.33 = 1,234.45/x
  3. Step 3: Cross multiply
    3,425.71x = 5,139.33 × 1,234.45
  4. Step 4: Simplify right side
    3,425.71x = 6,344,245.92
  5. Step 5: Solve for x
    x = 6,344,245.92/3,425.71
  6. Step 6: Final answer
    x = 1,851.95

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1.5x scale

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.