Home / 3,091.02-4,261.78-2,691.18

Finding the Fourth Proportional to 3,091.02, 4,261.78 and 2,691.18

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Solution

The fourth proportional to 3,091.02, 4,261.78 and 2,691.18 is: 3,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.02 : 4,261.78 = 2,691.18 : x
  2. Step 2: Convert to fraction form
    3,091.02/4,261.78 = 2,691.18/x
  3. Step 3: Cross multiply
    3,091.02x = 4,261.78 × 2,691.18
  4. Step 4: Simplify right side
    3,091.02x = 11,469,217.10
  5. Step 5: Solve for x
    x = 11,469,217.10/3,091.02
  6. Step 6: Final answer
    x = 3,710.50

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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.