Home / 5,780.10-7,974.41-3,791.76

Finding the Fourth Proportional to 5,780.10, 7,974.41 and 3,791.76

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Solution

The fourth proportional to 5,780.10, 7,974.41 and 3,791.76 is: 5,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.10 : 7,974.41 = 3,791.76 : x
  2. Step 2: Convert to fraction form
    5,780.10/7,974.41 = 3,791.76/x
  3. Step 3: Cross multiply
    5,780.10x = 7,974.41 × 3,791.76
  4. Step 4: Simplify right side
    5,780.10x = 30,237,029.90
  5. Step 5: Solve for x
    x = 30,237,029.90/5,780.10
  6. Step 6: Final answer
    x = 5,231.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.