Home / 2,199.08-3,298.92-812.24

Finding the Fourth Proportional to 2,199.08, 3,298.92 and 812.24

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Solution

The fourth proportional to 2,199.08, 3,298.92 and 812.24 is: 1,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.08 : 3,298.92 = 812.24 : x
  2. Step 2: Convert to fraction form
    2,199.08/3,298.92 = 812.24/x
  3. Step 3: Cross multiply
    2,199.08x = 3,298.92 × 812.24
  4. Step 4: Simplify right side
    2,199.08x = 2,679,514.78
  5. Step 5: Solve for x
    x = 2,679,514.78/2,199.08
  6. Step 6: Final answer
    x = 1,218.47

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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.