Home / 3,780.24-5,671.44-1,147.92

Finding the Fourth Proportional to 3,780.24, 5,671.44 and 1,147.92

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Solution

The fourth proportional to 3,780.24, 5,671.44 and 1,147.92 is: 1,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.24 : 5,671.44 = 1,147.92 : x
  2. Step 2: Convert to fraction form
    3,780.24/5,671.44 = 1,147.92/x
  3. Step 3: Cross multiply
    3,780.24x = 5,671.44 × 1,147.92
  4. Step 4: Simplify right side
    3,780.24x = 6,510,359.40
  5. Step 5: Solve for x
    x = 6,510,359.40/3,780.24
  6. Step 6: Final answer
    x = 1,722.21

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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.