Home / 3,380.89-5,071.35-1,040.86

Finding the Fourth Proportional to 3,380.89, 5,071.35 and 1,040.86

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Solution

The fourth proportional to 3,380.89, 5,071.35 and 1,040.86 is: 1,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.89 : 5,071.35 = 1,040.86 : x
  2. Step 2: Convert to fraction form
    3,380.89/5,071.35 = 1,040.86/x
  3. Step 3: Cross multiply
    3,380.89x = 5,071.35 × 1,040.86
  4. Step 4: Simplify right side
    3,380.89x = 5,278,565.36
  5. Step 5: Solve for x
    x = 5,278,565.36/3,380.89
  6. Step 6: Final answer
    x = 1,561.29

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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.