Home / 3,822.83-5,275.73-2,144.78

Finding the Fourth Proportional to 3,822.83, 5,275.73 and 2,144.78

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Solution

The fourth proportional to 3,822.83, 5,275.73 and 2,144.78 is: 2,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.83 : 5,275.73 = 2,144.78 : x
  2. Step 2: Convert to fraction form
    3,822.83/5,275.73 = 2,144.78/x
  3. Step 3: Cross multiply
    3,822.83x = 5,275.73 × 2,144.78
  4. Step 4: Simplify right side
    3,822.83x = 11,315,280.19
  5. Step 5: Solve for x
    x = 11,315,280.19/3,822.83
  6. Step 6: Final answer
    x = 2,959.92

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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.