Home / 3,799.76-5,243.51-2,121.11

Finding the Fourth Proportional to 3,799.76, 5,243.51 and 2,121.11

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Solution

The fourth proportional to 3,799.76, 5,243.51 and 2,121.11 is: 2,927.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.76 : 5,243.51 = 2,121.11 : x
  2. Step 2: Convert to fraction form
    3,799.76/5,243.51 = 2,121.11/x
  3. Step 3: Cross multiply
    3,799.76x = 5,243.51 × 2,121.11
  4. Step 4: Simplify right side
    3,799.76x = 11,122,024.67
  5. Step 5: Solve for x
    x = 11,122,024.67/3,799.76
  6. Step 6: Final answer
    x = 2,927.04

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Double scale
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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.