Home / 2,354.28-3,531.42-1,621.65

Finding the Fourth Proportional to 2,354.28, 3,531.42 and 1,621.65

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Solution

The fourth proportional to 2,354.28, 3,531.42 and 1,621.65 is: 2,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.28 : 3,531.42 = 1,621.65 : x
  2. Step 2: Convert to fraction form
    2,354.28/3,531.42 = 1,621.65/x
  3. Step 3: Cross multiply
    2,354.28x = 3,531.42 × 1,621.65
  4. Step 4: Simplify right side
    2,354.28x = 5,726,727.24
  5. Step 5: Solve for x
    x = 5,726,727.24/2,354.28
  6. Step 6: Final answer
    x = 2,432.48

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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.