Home / 3,231.26-4,842.90-1,913.70

Finding the Fourth Proportional to 3,231.26, 4,842.90 and 1,913.70

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Solution

The fourth proportional to 3,231.26, 4,842.90 and 1,913.70 is: 2,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.26 : 4,842.90 = 1,913.70 : x
  2. Step 2: Convert to fraction form
    3,231.26/4,842.90 = 1,913.70/x
  3. Step 3: Cross multiply
    3,231.26x = 4,842.90 × 1,913.70
  4. Step 4: Simplify right side
    3,231.26x = 9,267,857.73
  5. Step 5: Solve for x
    x = 9,267,857.73/3,231.26
  6. Step 6: Final answer
    x = 2,868.19

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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.