Home / 3,380.78-5,071.66-1,040.98

Finding the Fourth Proportional to 3,380.78, 5,071.66 and 1,040.98

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Solution

The fourth proportional to 3,380.78, 5,071.66 and 1,040.98 is: 1,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.78 : 5,071.66 = 1,040.98 : x
  2. Step 2: Convert to fraction form
    3,380.78/5,071.66 = 1,040.98/x
  3. Step 3: Cross multiply
    3,380.78x = 5,071.66 × 1,040.98
  4. Step 4: Simplify right side
    3,380.78x = 5,279,490.85
  5. Step 5: Solve for x
    x = 5,279,490.85/3,380.78
  6. Step 6: Final answer
    x = 1,561.62

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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.