Home / 7,540.29-11,298.89-3,155.36

Finding the Fourth Proportional to 7,540.29, 11,298.89 and 3,155.36

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Solution

The fourth proportional to 7,540.29, 11,298.89 and 3,155.36 is: 4,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.29 : 11,298.89 = 3,155.36 : x
  2. Step 2: Convert to fraction form
    7,540.29/11,298.89 = 3,155.36/x
  3. Step 3: Cross multiply
    7,540.29x = 11,298.89 × 3,155.36
  4. Step 4: Simplify right side
    7,540.29x = 35,652,016.94
  5. Step 5: Solve for x
    x = 35,652,016.94/7,540.29
  6. Step 6: Final answer
    x = 4,728.20

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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.