Home / 2,247.28-3,101.16-1,315.76

Finding the Fourth Proportional to 2,247.28, 3,101.16 and 1,315.76

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Solution

The fourth proportional to 2,247.28, 3,101.16 and 1,315.76 is: 1,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.28 : 3,101.16 = 1,315.76 : x
  2. Step 2: Convert to fraction form
    2,247.28/3,101.16 = 1,315.76/x
  3. Step 3: Cross multiply
    2,247.28x = 3,101.16 × 1,315.76
  4. Step 4: Simplify right side
    2,247.28x = 4,080,382.28
  5. Step 5: Solve for x
    x = 4,080,382.28/2,247.28
  6. Step 6: Final answer
    x = 1,815.70

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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.