Home / 5,425.71-8,129.85-3,339.55

Finding the Fourth Proportional to 5,425.71, 8,129.85 and 3,339.55

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Solution

The fourth proportional to 5,425.71, 8,129.85 and 3,339.55 is: 5,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.71 : 8,129.85 = 3,339.55 : x
  2. Step 2: Convert to fraction form
    5,425.71/8,129.85 = 3,339.55/x
  3. Step 3: Cross multiply
    5,425.71x = 8,129.85 × 3,339.55
  4. Step 4: Simplify right side
    5,425.71x = 27,150,040.57
  5. Step 5: Solve for x
    x = 27,150,040.57/5,425.71
  6. Step 6: Final answer
    x = 5,003.96

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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.