Home / 5,013.61-6,921.92-3,221.82

Finding the Fourth Proportional to 5,013.61, 6,921.92 and 3,221.82

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Solution

The fourth proportional to 5,013.61, 6,921.92 and 3,221.82 is: 4,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,013.61 : 6,921.92 = 3,221.82 : x
  2. Step 2: Convert to fraction form
    5,013.61/6,921.92 = 3,221.82/x
  3. Step 3: Cross multiply
    5,013.61x = 6,921.92 × 3,221.82
  4. Step 4: Simplify right side
    5,013.61x = 22,301,180.29
  5. Step 5: Solve for x
    x = 22,301,180.29/5,013.61
  6. Step 6: Final answer
    x = 4,448.13

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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.