Home / 3,132.72-4,328.91-2,247.12

Finding the Fourth Proportional to 3,132.72, 4,328.91 and 2,247.12

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Solution

The fourth proportional to 3,132.72, 4,328.91 and 2,247.12 is: 3,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.72 : 4,328.91 = 2,247.12 : x
  2. Step 2: Convert to fraction form
    3,132.72/4,328.91 = 2,247.12/x
  3. Step 3: Cross multiply
    3,132.72x = 4,328.91 × 2,247.12
  4. Step 4: Simplify right side
    3,132.72x = 9,727,580.24
  5. Step 5: Solve for x
    x = 9,727,580.24/3,132.72
  6. Step 6: Final answer
    x = 3,105.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.