Home / 3,081.30-4,246.56-2,331.24

Finding the Fourth Proportional to 3,081.30, 4,246.56 and 2,331.24

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Solution

The fourth proportional to 3,081.30, 4,246.56 and 2,331.24 is: 3,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.30 : 4,246.56 = 2,331.24 : x
  2. Step 2: Convert to fraction form
    3,081.30/4,246.56 = 2,331.24/x
  3. Step 3: Cross multiply
    3,081.30x = 4,246.56 × 2,331.24
  4. Step 4: Simplify right side
    3,081.30x = 9,899,750.53
  5. Step 5: Solve for x
    x = 9,899,750.53/3,081.30
  6. Step 6: Final answer
    x = 3,212.85

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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.