Home / 2,760.26-4,140.46-812.53

Finding the Fourth Proportional to 2,760.26, 4,140.46 and 812.53

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Solution

The fourth proportional to 2,760.26, 4,140.46 and 812.53 is: 1,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.26 : 4,140.46 = 812.53 : x
  2. Step 2: Convert to fraction form
    2,760.26/4,140.46 = 812.53/x
  3. Step 3: Cross multiply
    2,760.26x = 4,140.46 × 812.53
  4. Step 4: Simplify right side
    2,760.26x = 3,364,247.96
  5. Step 5: Solve for x
    x = 3,364,247.96/2,760.26
  6. Step 6: Final answer
    x = 1,218.82

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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.