Home / 2,045.15-3,067.45-812.24

Finding the Fourth Proportional to 2,045.15, 3,067.45 and 812.24

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Solution

The fourth proportional to 2,045.15, 3,067.45 and 812.24 is: 1,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.15 : 3,067.45 = 812.24 : x
  2. Step 2: Convert to fraction form
    2,045.15/3,067.45 = 812.24/x
  3. Step 3: Cross multiply
    2,045.15x = 3,067.45 × 812.24
  4. Step 4: Simplify right side
    2,045.15x = 2,491,488.22
  5. Step 5: Solve for x
    x = 2,491,488.22/2,045.15
  6. Step 6: Final answer
    x = 1,218.25

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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.