Home / 2,761.24-4,138.85-1,356.63

Finding the Fourth Proportional to 2,761.24, 4,138.85 and 1,356.63

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Solution

The fourth proportional to 2,761.24, 4,138.85 and 1,356.63 is: 2,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.24 : 4,138.85 = 1,356.63 : x
  2. Step 2: Convert to fraction form
    2,761.24/4,138.85 = 1,356.63/x
  3. Step 3: Cross multiply
    2,761.24x = 4,138.85 × 1,356.63
  4. Step 4: Simplify right side
    2,761.24x = 5,614,868.27
  5. Step 5: Solve for x
    x = 5,614,868.27/2,761.24
  6. Step 6: Final answer
    x = 2,033.46

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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.