Home / 2,278.11-3,142.56-1,613.85

Finding the Fourth Proportional to 2,278.11, 3,142.56 and 1,613.85

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Solution

The fourth proportional to 2,278.11, 3,142.56 and 1,613.85 is: 2,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.11 : 3,142.56 = 1,613.85 : x
  2. Step 2: Convert to fraction form
    2,278.11/3,142.56 = 1,613.85/x
  3. Step 3: Cross multiply
    2,278.11x = 3,142.56 × 1,613.85
  4. Step 4: Simplify right side
    2,278.11x = 5,071,620.46
  5. Step 5: Solve for x
    x = 5,071,620.46/2,278.11
  6. Step 6: Final answer
    x = 2,226.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.