Home / 5,120.74-7,066.66-3,025.90

Finding the Fourth Proportional to 5,120.74, 7,066.66 and 3,025.90

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Solution

The fourth proportional to 5,120.74, 7,066.66 and 3,025.90 is: 4,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.74 : 7,066.66 = 3,025.90 : x
  2. Step 2: Convert to fraction form
    5,120.74/7,066.66 = 3,025.90/x
  3. Step 3: Cross multiply
    5,120.74x = 7,066.66 × 3,025.90
  4. Step 4: Simplify right side
    5,120.74x = 21,383,006.49
  5. Step 5: Solve for x
    x = 21,383,006.49/5,120.74
  6. Step 6: Final answer
    x = 4,175.76

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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.