Home / 5,424.89-7,488.11-3,186.71

Finding the Fourth Proportional to 5,424.89, 7,488.11 and 3,186.71

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Solution

The fourth proportional to 5,424.89, 7,488.11 and 3,186.71 is: 4,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.89 : 7,488.11 = 3,186.71 : x
  2. Step 2: Convert to fraction form
    5,424.89/7,488.11 = 3,186.71/x
  3. Step 3: Cross multiply
    5,424.89x = 7,488.11 × 3,186.71
  4. Step 4: Simplify right side
    5,424.89x = 23,862,435.02
  5. Step 5: Solve for x
    x = 23,862,435.02/5,424.89
  6. Step 6: Final answer
    x = 4,398.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.