Home / 3,432.32-5,143.92-1,872.32

Finding the Fourth Proportional to 3,432.32, 5,143.92 and 1,872.32

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Solution

The fourth proportional to 3,432.32, 5,143.92 and 1,872.32 is: 2,805.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.32 : 5,143.92 = 1,872.32 : x
  2. Step 2: Convert to fraction form
    3,432.32/5,143.92 = 1,872.32/x
  3. Step 3: Cross multiply
    3,432.32x = 5,143.92 × 1,872.32
  4. Step 4: Simplify right side
    3,432.32x = 9,631,064.29
  5. Step 5: Solve for x
    x = 9,631,064.29/3,432.32
  6. Step 6: Final answer
    x = 2,805.99

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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.