Home / 5,202.42-7,179.48-3,107.76

Finding the Fourth Proportional to 5,202.42, 7,179.48 and 3,107.76

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Solution

The fourth proportional to 5,202.42, 7,179.48 and 3,107.76 is: 4,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202.42 : 7,179.48 = 3,107.76 : x
  2. Step 2: Convert to fraction form
    5,202.42/7,179.48 = 3,107.76/x
  3. Step 3: Cross multiply
    5,202.42x = 7,179.48 × 3,107.76
  4. Step 4: Simplify right side
    5,202.42x = 22,312,100.76
  5. Step 5: Solve for x
    x = 22,312,100.76/5,202.42
  6. Step 6: Final answer
    x = 4,288.79

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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.