Home / 3,572.28-5,360.13-1,380.42

Finding the Fourth Proportional to 3,572.28, 5,360.13 and 1,380.42

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Solution

The fourth proportional to 3,572.28, 5,360.13 and 1,380.42 is: 2,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.28 : 5,360.13 = 1,380.42 : x
  2. Step 2: Convert to fraction form
    3,572.28/5,360.13 = 1,380.42/x
  3. Step 3: Cross multiply
    3,572.28x = 5,360.13 × 1,380.42
  4. Step 4: Simplify right side
    3,572.28x = 7,399,230.65
  5. Step 5: Solve for x
    x = 7,399,230.65/3,572.28
  6. Step 6: Final answer
    x = 2,071.29

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1.5x scale

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.