Home / 3,772.27-5,658.43-1,139.78

Finding the Fourth Proportional to 3,772.27, 5,658.43 and 1,139.78

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Solution

The fourth proportional to 3,772.27, 5,658.43 and 1,139.78 is: 1,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.27 : 5,658.43 = 1,139.78 : x
  2. Step 2: Convert to fraction form
    3,772.27/5,658.43 = 1,139.78/x
  3. Step 3: Cross multiply
    3,772.27x = 5,658.43 × 1,139.78
  4. Step 4: Simplify right side
    3,772.27x = 6,449,365.35
  5. Step 5: Solve for x
    x = 6,449,365.35/3,772.27
  6. Step 6: Final answer
    x = 1,709.68

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1.5x scale

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.