Home / 3,115.24-4,295.46-2,867.56

Finding the Fourth Proportional to 3,115.24, 4,295.46 and 2,867.56

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Solution

The fourth proportional to 3,115.24, 4,295.46 and 2,867.56 is: 3,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.24 : 4,295.46 = 2,867.56 : x
  2. Step 2: Convert to fraction form
    3,115.24/4,295.46 = 2,867.56/x
  3. Step 3: Cross multiply
    3,115.24x = 4,295.46 × 2,867.56
  4. Step 4: Simplify right side
    3,115.24x = 12,317,489.28
  5. Step 5: Solve for x
    x = 12,317,489.28/3,115.24
  6. Step 6: Final answer
    x = 3,953.95

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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.