Home / 2,810.26-4,215.42-862.48

Finding the Fourth Proportional to 2,810.26, 4,215.42 and 862.48

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Solution

The fourth proportional to 2,810.26, 4,215.42 and 862.48 is: 1,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.26 : 4,215.42 = 862.48 : x
  2. Step 2: Convert to fraction form
    2,810.26/4,215.42 = 862.48/x
  3. Step 3: Cross multiply
    2,810.26x = 4,215.42 × 862.48
  4. Step 4: Simplify right side
    2,810.26x = 3,635,715.44
  5. Step 5: Solve for x
    x = 3,635,715.44/2,810.26
  6. Step 6: Final answer
    x = 1,293.73

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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.