Home / 3,540.11-5,312.57-1,231.61

Finding the Fourth Proportional to 3,540.11, 5,312.57 and 1,231.61

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Solution

The fourth proportional to 3,540.11, 5,312.57 and 1,231.61 is: 1,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.11 : 5,312.57 = 1,231.61 : x
  2. Step 2: Convert to fraction form
    3,540.11/5,312.57 = 1,231.61/x
  3. Step 3: Cross multiply
    3,540.11x = 5,312.57 × 1,231.61
  4. Step 4: Simplify right side
    3,540.11x = 6,542,981.62
  5. Step 5: Solve for x
    x = 6,542,981.62/3,540.11
  6. Step 6: Final answer
    x = 1,848.25

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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.