Home / 2,456.18-3,682.88-812.26

Finding the Fourth Proportional to 2,456.18, 3,682.88 and 812.26

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Solution

The fourth proportional to 2,456.18, 3,682.88 and 812.26 is: 1,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.18 : 3,682.88 = 812.26 : x
  2. Step 2: Convert to fraction form
    2,456.18/3,682.88 = 812.26/x
  3. Step 3: Cross multiply
    2,456.18x = 3,682.88 × 812.26
  4. Step 4: Simplify right side
    2,456.18x = 2,991,456.11
  5. Step 5: Solve for x
    x = 2,991,456.11/2,456.18
  6. Step 6: Final answer
    x = 1,217.93

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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.