Home / 2,567.11-3,851.24-812.22

Finding the Fourth Proportional to 2,567.11, 3,851.24 and 812.22

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Solution

The fourth proportional to 2,567.11, 3,851.24 and 812.22 is: 1,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,567.11 : 3,851.24 = 812.22 : x
  2. Step 2: Convert to fraction form
    2,567.11/3,851.24 = 812.22/x
  3. Step 3: Cross multiply
    2,567.11x = 3,851.24 × 812.22
  4. Step 4: Simplify right side
    2,567.11x = 3,128,056.18
  5. Step 5: Solve for x
    x = 3,128,056.18/2,567.11
  6. Step 6: Final answer
    x = 1,218.51

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1.5x scale

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.