Home / 3,811.43-5,259.87-2,132.82

Finding the Fourth Proportional to 3,811.43, 5,259.87 and 2,132.82

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Solution

The fourth proportional to 3,811.43, 5,259.87 and 2,132.82 is: 2,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.43 : 5,259.87 = 2,132.82 : x
  2. Step 2: Convert to fraction form
    3,811.43/5,259.87 = 2,132.82/x
  3. Step 3: Cross multiply
    3,811.43x = 5,259.87 × 2,132.82
  4. Step 4: Simplify right side
    3,811.43x = 11,218,345.27
  5. Step 5: Solve for x
    x = 11,218,345.27/3,811.43
  6. Step 6: Final answer
    x = 2,943.35

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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.