Home / 2,841.20-3,921.18-2,750.48

Finding the Fourth Proportional to 2,841.20, 3,921.18 and 2,750.48

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Solution

The fourth proportional to 2,841.20, 3,921.18 and 2,750.48 is: 3,795.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.20 : 3,921.18 = 2,750.48 : x
  2. Step 2: Convert to fraction form
    2,841.20/3,921.18 = 2,750.48/x
  3. Step 3: Cross multiply
    2,841.20x = 3,921.18 × 2,750.48
  4. Step 4: Simplify right side
    2,841.20x = 10,785,127.17
  5. Step 5: Solve for x
    x = 10,785,127.17/2,841.20
  6. Step 6: Final answer
    x = 3,795.98

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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.