Home / 3,631.38-5,449.05-1,440.18

Finding the Fourth Proportional to 3,631.38, 5,449.05 and 1,440.18

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Solution

The fourth proportional to 3,631.38, 5,449.05 and 1,440.18 is: 2,161.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.38 : 5,449.05 = 1,440.18 : x
  2. Step 2: Convert to fraction form
    3,631.38/5,449.05 = 1,440.18/x
  3. Step 3: Cross multiply
    3,631.38x = 5,449.05 × 1,440.18
  4. Step 4: Simplify right side
    3,631.38x = 7,847,612.83
  5. Step 5: Solve for x
    x = 7,847,612.83/3,631.38
  6. Step 6: Final answer
    x = 2,161.06

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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.