Home / 3,577.24-5,365.28-979.56

Finding the Fourth Proportional to 3,577.24, 5,365.28 and 979.56

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Solution

The fourth proportional to 3,577.24, 5,365.28 and 979.56 is: 1,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.24 : 5,365.28 = 979.56 : x
  2. Step 2: Convert to fraction form
    3,577.24/5,365.28 = 979.56/x
  3. Step 3: Cross multiply
    3,577.24x = 5,365.28 × 979.56
  4. Step 4: Simplify right side
    3,577.24x = 5,255,613.68
  5. Step 5: Solve for x
    x = 5,255,613.68/3,577.24
  6. Step 6: Final answer
    x = 1,469.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.