Home / 2,760.12-4,139.06-1,372.95

Finding the Fourth Proportional to 2,760.12, 4,139.06 and 1,372.95

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Solution

The fourth proportional to 2,760.12, 4,139.06 and 1,372.95 is: 2,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.12 : 4,139.06 = 1,372.95 : x
  2. Step 2: Convert to fraction form
    2,760.12/4,139.06 = 1,372.95/x
  3. Step 3: Cross multiply
    2,760.12x = 4,139.06 × 1,372.95
  4. Step 4: Simplify right side
    2,760.12x = 5,682,715.56
  5. Step 5: Solve for x
    x = 5,682,715.56/2,760.12
  6. Step 6: Final answer
    x = 2,058.87

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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.