Home / 7,721.36-11,575.92-3,335.76

Finding the Fourth Proportional to 7,721.36, 11,575.92 and 3,335.76

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Solution

The fourth proportional to 7,721.36, 11,575.92 and 3,335.76 is: 5,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.36 : 11,575.92 = 3,335.76 : x
  2. Step 2: Convert to fraction form
    7,721.36/11,575.92 = 3,335.76/x
  3. Step 3: Cross multiply
    7,721.36x = 11,575.92 × 3,335.76
  4. Step 4: Simplify right side
    7,721.36x = 38,614,490.90
  5. Step 5: Solve for x
    x = 38,614,490.90/7,721.36
  6. Step 6: Final answer
    x = 5,001.00

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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.