Home / 3,049.28-4,209.44-1,945.92

Finding the Fourth Proportional to 3,049.28, 4,209.44 and 1,945.92

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Solution

The fourth proportional to 3,049.28, 4,209.44 and 1,945.92 is: 2,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.28 : 4,209.44 = 1,945.92 : x
  2. Step 2: Convert to fraction form
    3,049.28/4,209.44 = 1,945.92/x
  3. Step 3: Cross multiply
    3,049.28x = 4,209.44 × 1,945.92
  4. Step 4: Simplify right side
    3,049.28x = 8,191,233.48
  5. Step 5: Solve for x
    x = 8,191,233.48/3,049.28
  6. Step 6: Final answer
    x = 2,686.28

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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.