Home / 5,105.74-7,045.60-2,867.56

Finding the Fourth Proportional to 5,105.74, 7,045.60 and 2,867.56

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Solution

The fourth proportional to 5,105.74, 7,045.60 and 2,867.56 is: 3,957.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.74 : 7,045.60 = 2,867.56 : x
  2. Step 2: Convert to fraction form
    5,105.74/7,045.60 = 2,867.56/x
  3. Step 3: Cross multiply
    5,105.74x = 7,045.60 × 2,867.56
  4. Step 4: Simplify right side
    5,105.74x = 20,203,631.17
  5. Step 5: Solve for x
    x = 20,203,631.17/5,105.74
  6. Step 6: Final answer
    x = 3,957.04

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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.