Home / 3,381.12-5,071.59-1,379.97

Finding the Fourth Proportional to 3,381.12, 5,071.59 and 1,379.97

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Solution

The fourth proportional to 3,381.12, 5,071.59 and 1,379.97 is: 2,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.12 : 5,071.59 = 1,379.97 : x
  2. Step 2: Convert to fraction form
    3,381.12/5,071.59 = 1,379.97/x
  3. Step 3: Cross multiply
    3,381.12x = 5,071.59 × 1,379.97
  4. Step 4: Simplify right side
    3,381.12x = 6,998,642.05
  5. Step 5: Solve for x
    x = 6,998,642.05/3,381.12
  6. Step 6: Final answer
    x = 2,069.92

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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.