Home / 2,262.24-3,121.80-1,318.06

Finding the Fourth Proportional to 2,262.24, 3,121.80 and 1,318.06

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Solution

The fourth proportional to 2,262.24, 3,121.80 and 1,318.06 is: 1,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.24 : 3,121.80 = 1,318.06 : x
  2. Step 2: Convert to fraction form
    2,262.24/3,121.80 = 1,318.06/x
  3. Step 3: Cross multiply
    2,262.24x = 3,121.80 × 1,318.06
  4. Step 4: Simplify right side
    2,262.24x = 4,114,719.71
  5. Step 5: Solve for x
    x = 4,114,719.71/2,262.24
  6. Step 6: Final answer
    x = 1,818.87

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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.