Home / 3,519.42-5,278.68-922.56

Finding the Fourth Proportional to 3,519.42, 5,278.68 and 922.56

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Solution

The fourth proportional to 3,519.42, 5,278.68 and 922.56 is: 1,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.42 : 5,278.68 = 922.56 : x
  2. Step 2: Convert to fraction form
    3,519.42/5,278.68 = 922.56/x
  3. Step 3: Cross multiply
    3,519.42x = 5,278.68 × 922.56
  4. Step 4: Simplify right side
    3,519.42x = 4,869,899.02
  5. Step 5: Solve for x
    x = 4,869,899.02/3,519.42
  6. Step 6: Final answer
    x = 1,383.72

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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.