Home / 5,245.31-7,865.40-2,469.65

Finding the Fourth Proportional to 5,245.31, 7,865.40 and 2,469.65

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Solution

The fourth proportional to 5,245.31, 7,865.40 and 2,469.65 is: 3,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.31 : 7,865.40 = 2,469.65 : x
  2. Step 2: Convert to fraction form
    5,245.31/7,865.40 = 2,469.65/x
  3. Step 3: Cross multiply
    5,245.31x = 7,865.40 × 2,469.65
  4. Step 4: Simplify right side
    5,245.31x = 19,424,755.04
  5. Step 5: Solve for x
    x = 19,424,755.04/5,245.31
  6. Step 6: Final answer
    x = 3,703.26

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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.