Home / 5,767.74-7,959.48-3,115.15

Finding the Fourth Proportional to 5,767.74, 7,959.48 and 3,115.15

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Solution

The fourth proportional to 5,767.74, 7,959.48 and 3,115.15 is: 4,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,767.74 : 7,959.48 = 3,115.15 : x
  2. Step 2: Convert to fraction form
    5,767.74/7,959.48 = 3,115.15/x
  3. Step 3: Cross multiply
    5,767.74x = 7,959.48 × 3,115.15
  4. Step 4: Simplify right side
    5,767.74x = 24,794,942.54
  5. Step 5: Solve for x
    x = 24,794,942.54/5,767.74
  6. Step 6: Final answer
    x = 4,298.90

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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.