Home / 3,853.46-5,781.16-1,080.14

Finding the Fourth Proportional to 3,853.46, 5,781.16 and 1,080.14

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Solution

The fourth proportional to 3,853.46, 5,781.16 and 1,080.14 is: 1,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.46 : 5,781.16 = 1,080.14 : x
  2. Step 2: Convert to fraction form
    3,853.46/5,781.16 = 1,080.14/x
  3. Step 3: Cross multiply
    3,853.46x = 5,781.16 × 1,080.14
  4. Step 4: Simplify right side
    3,853.46x = 6,244,462.16
  5. Step 5: Solve for x
    x = 6,244,462.16/3,853.46
  6. Step 6: Final answer
    x = 1,620.48

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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.