Home / 2,247.12-3,101.64-1,315.92

Finding the Fourth Proportional to 2,247.12, 3,101.64 and 1,315.92

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Solution

The fourth proportional to 2,247.12, 3,101.64 and 1,315.92 is: 1,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.12 : 3,101.64 = 1,315.92 : x
  2. Step 2: Convert to fraction form
    2,247.12/3,101.64 = 1,315.92/x
  3. Step 3: Cross multiply
    2,247.12x = 3,101.64 × 1,315.92
  4. Step 4: Simplify right side
    2,247.12x = 4,081,510.11
  5. Step 5: Solve for x
    x = 4,081,510.11/2,247.12
  6. Step 6: Final answer
    x = 1,816.33

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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.