Home / 3,147.42-4,721.13-1,760.52

Finding the Fourth Proportional to 3,147.42, 4,721.13 and 1,760.52

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Solution

The fourth proportional to 3,147.42, 4,721.13 and 1,760.52 is: 2,640.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.42 : 4,721.13 = 1,760.52 : x
  2. Step 2: Convert to fraction form
    3,147.42/4,721.13 = 1,760.52/x
  3. Step 3: Cross multiply
    3,147.42x = 4,721.13 × 1,760.52
  4. Step 4: Simplify right side
    3,147.42x = 8,311,643.79
  5. Step 5: Solve for x
    x = 8,311,643.79/3,147.42
  6. Step 6: Final answer
    x = 2,640.78

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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.