Home / 6,731.20-9,288.97-3,899.48

Finding the Fourth Proportional to 6,731.20, 9,288.97 and 3,899.48

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Solution

The fourth proportional to 6,731.20, 9,288.97 and 3,899.48 is: 5,381.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.20 : 9,288.97 = 3,899.48 : x
  2. Step 2: Convert to fraction form
    6,731.20/9,288.97 = 3,899.48/x
  3. Step 3: Cross multiply
    6,731.20x = 9,288.97 × 3,899.48
  4. Step 4: Simplify right side
    6,731.20x = 36,222,133.24
  5. Step 5: Solve for x
    x = 36,222,133.24/6,731.20
  6. Step 6: Final answer
    x = 5,381.23

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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.