Home / 5,202.18-7,179.56-3,078.42

Finding the Fourth Proportional to 5,202.18, 7,179.56 and 3,078.42

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Solution

The fourth proportional to 5,202.18, 7,179.56 and 3,078.42 is: 4,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202.18 : 7,179.56 = 3,078.42 : x
  2. Step 2: Convert to fraction form
    5,202.18/7,179.56 = 3,078.42/x
  3. Step 3: Cross multiply
    5,202.18x = 7,179.56 × 3,078.42
  4. Step 4: Simplify right side
    5,202.18x = 22,101,701.10
  5. Step 5: Solve for x
    x = 22,101,701.10/5,202.18
  6. Step 6: Final answer
    x = 4,248.55

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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.