Home / 3,425.91-5,139.41-1,451.55

Finding the Fourth Proportional to 3,425.91, 5,139.41 and 1,451.55

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Solution

The fourth proportional to 3,425.91, 5,139.41 and 1,451.55 is: 2,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.91 : 5,139.41 = 1,451.55 : x
  2. Step 2: Convert to fraction form
    3,425.91/5,139.41 = 1,451.55/x
  3. Step 3: Cross multiply
    3,425.91x = 5,139.41 × 1,451.55
  4. Step 4: Simplify right side
    3,425.91x = 7,460,108.77
  5. Step 5: Solve for x
    x = 7,460,108.77/3,425.91
  6. Step 6: Final answer
    x = 2,177.55

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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.