Home / 3,380.75-5,071.60-1,040.95

Finding the Fourth Proportional to 3,380.75, 5,071.60 and 1,040.95

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Solution

The fourth proportional to 3,380.75, 5,071.60 and 1,040.95 is: 1,561.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.75 : 5,071.60 = 1,040.95 : x
  2. Step 2: Convert to fraction form
    3,380.75/5,071.60 = 1,040.95/x
  3. Step 3: Cross multiply
    3,380.75x = 5,071.60 × 1,040.95
  4. Step 4: Simplify right side
    3,380.75x = 5,279,282.02
  5. Step 5: Solve for x
    x = 5,279,282.02/3,380.75
  6. Step 6: Final answer
    x = 1,561.57

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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.