Home / 3,822.72-5,275.56-2,876.80

Finding the Fourth Proportional to 3,822.72, 5,275.56 and 2,876.80

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Solution

The fourth proportional to 3,822.72, 5,275.56 and 2,876.80 is: 3,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.72 : 5,275.56 = 2,876.80 : x
  2. Step 2: Convert to fraction form
    3,822.72/5,275.56 = 2,876.80/x
  3. Step 3: Cross multiply
    3,822.72x = 5,275.56 × 2,876.80
  4. Step 4: Simplify right side
    3,822.72x = 15,176,731.01
  5. Step 5: Solve for x
    x = 15,176,731.01/3,822.72
  6. Step 6: Final answer
    x = 3,970.14

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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.