Home / 3,800.29-5,244.36-2,121.66

Finding the Fourth Proportional to 3,800.29, 5,244.36 and 2,121.66

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Solution

The fourth proportional to 3,800.29, 5,244.36 and 2,121.66 is: 2,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.29 : 5,244.36 = 2,121.66 : x
  2. Step 2: Convert to fraction form
    3,800.29/5,244.36 = 2,121.66/x
  3. Step 3: Cross multiply
    3,800.29x = 5,244.36 × 2,121.66
  4. Step 4: Simplify right side
    3,800.29x = 11,126,748.84
  5. Step 5: Solve for x
    x = 11,126,748.84/3,800.29
  6. Step 6: Final answer
    x = 2,927.87

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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.