Home / 7,725.81-11,581.89-3,340.88

Finding the Fourth Proportional to 7,725.81, 11,581.89 and 3,340.88

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Solution

The fourth proportional to 7,725.81, 11,581.89 and 3,340.88 is: 5,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.81 : 11,581.89 = 3,340.88 : x
  2. Step 2: Convert to fraction form
    7,725.81/11,581.89 = 3,340.88/x
  3. Step 3: Cross multiply
    7,725.81x = 11,581.89 × 3,340.88
  4. Step 4: Simplify right side
    7,725.81x = 38,693,677.66
  5. Step 5: Solve for x
    x = 38,693,677.66/7,725.81
  6. Step 6: Final answer
    x = 5,008.36

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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.