Home / 3,521.31-5,280.20-1,180.54

Finding the Fourth Proportional to 3,521.31, 5,280.20 and 1,180.54

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Solution

The fourth proportional to 3,521.31, 5,280.20 and 1,180.54 is: 1,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.31 : 5,280.20 = 1,180.54 : x
  2. Step 2: Convert to fraction form
    3,521.31/5,280.20 = 1,180.54/x
  3. Step 3: Cross multiply
    3,521.31x = 5,280.20 × 1,180.54
  4. Step 4: Simplify right side
    3,521.31x = 6,233,471.82
  5. Step 5: Solve for x
    x = 6,233,471.82/3,521.31
  6. Step 6: Final answer
    x = 1,770.21

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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.