Home / 5,425.91-8,139.47-1,727.28

Finding the Fourth Proportional to 5,425.91, 8,139.47 and 1,727.28

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Solution

The fourth proportional to 5,425.91, 8,139.47 and 1,727.28 is: 2,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.91 : 8,139.47 = 1,727.28 : x
  2. Step 2: Convert to fraction form
    5,425.91/8,139.47 = 1,727.28/x
  3. Step 3: Cross multiply
    5,425.91x = 8,139.47 × 1,727.28
  4. Step 4: Simplify right side
    5,425.91x = 14,059,117.07
  5. Step 5: Solve for x
    x = 14,059,117.07/5,425.91
  6. Step 6: Final answer
    x = 2,591.11

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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.