Home / 3,853.83-5,781.73-1,080.53

Finding the Fourth Proportional to 3,853.83, 5,781.73 and 1,080.53

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Solution

The fourth proportional to 3,853.83, 5,781.73 and 1,080.53 is: 1,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.83 : 5,781.73 = 1,080.53 : x
  2. Step 2: Convert to fraction form
    3,853.83/5,781.73 = 1,080.53/x
  3. Step 3: Cross multiply
    3,853.83x = 5,781.73 × 1,080.53
  4. Step 4: Simplify right side
    3,853.83x = 6,247,332.72
  5. Step 5: Solve for x
    x = 6,247,332.72/3,853.83
  6. Step 6: Final answer
    x = 1,621.07

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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.