Home / 5,425.72-8,139.17-1,726.65

Finding the Fourth Proportional to 5,425.72, 8,139.17 and 1,726.65

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Solution

The fourth proportional to 5,425.72, 8,139.17 and 1,726.65 is: 2,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.72 : 8,139.17 = 1,726.65 : x
  2. Step 2: Convert to fraction form
    5,425.72/8,139.17 = 1,726.65/x
  3. Step 3: Cross multiply
    5,425.72x = 8,139.17 × 1,726.65
  4. Step 4: Simplify right side
    5,425.72x = 14,053,502.20
  5. Step 5: Solve for x
    x = 14,053,502.20/5,425.72
  6. Step 6: Final answer
    x = 2,590.16

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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.