Home / 2,891.55-4,338.01-1,248.11

Finding the Fourth Proportional to 2,891.55, 4,338.01 and 1,248.11

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Solution

The fourth proportional to 2,891.55, 4,338.01 and 1,248.11 is: 1,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.55 : 4,338.01 = 1,248.11 : x
  2. Step 2: Convert to fraction form
    2,891.55/4,338.01 = 1,248.11/x
  3. Step 3: Cross multiply
    2,891.55x = 4,338.01 × 1,248.11
  4. Step 4: Simplify right side
    2,891.55x = 5,414,302.78
  5. Step 5: Solve for x
    x = 5,414,302.78/2,891.55
  6. Step 6: Final answer
    x = 1,872.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.