Home / 1,481.28-2,044.10-818.18

Finding the Fourth Proportional to 1,481.28, 2,044.10 and 818.18

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Solution

The fourth proportional to 1,481.28, 2,044.10 and 818.18 is: 1,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.28 : 2,044.10 = 818.18 : x
  2. Step 2: Convert to fraction form
    1,481.28/2,044.10 = 818.18/x
  3. Step 3: Cross multiply
    1,481.28x = 2,044.10 × 818.18
  4. Step 4: Simplify right side
    1,481.28x = 1,672,437.65
  5. Step 5: Solve for x
    x = 1,672,437.65/1,481.28
  6. Step 6: Final answer
    x = 1,129.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.