Home / 3,319.96-4,979.82-1,011.40

Finding the Fourth Proportional to 3,319.96, 4,979.82 and 1,011.40

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Solution

The fourth proportional to 3,319.96, 4,979.82 and 1,011.40 is: 1,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.96 : 4,979.82 = 1,011.40 : x
  2. Step 2: Convert to fraction form
    3,319.96/4,979.82 = 1,011.40/x
  3. Step 3: Cross multiply
    3,319.96x = 4,979.82 × 1,011.40
  4. Step 4: Simplify right side
    3,319.96x = 5,036,589.95
  5. Step 5: Solve for x
    x = 5,036,589.95/3,319.96
  6. Step 6: Final answer
    x = 1,517.06

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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.