Home / 3,519.96-5,278.52-1,327.49

Finding the Fourth Proportional to 3,519.96, 5,278.52 and 1,327.49

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Solution

The fourth proportional to 3,519.96, 5,278.52 and 1,327.49 is: 1,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.96 : 5,278.52 = 1,327.49 : x
  2. Step 2: Convert to fraction form
    3,519.96/5,278.52 = 1,327.49/x
  3. Step 3: Cross multiply
    3,519.96x = 5,278.52 × 1,327.49
  4. Step 4: Simplify right side
    3,519.96x = 7,007,171.77
  5. Step 5: Solve for x
    x = 7,007,171.77/3,519.96
  6. Step 6: Final answer
    x = 1,990.70

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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.