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Finding the Fourth Proportional to 2,273.84, 3,422.76 and 1,939.76

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Solution

The fourth proportional to 2,273.84, 3,422.76 and 1,939.76 is: 2,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.84 : 3,422.76 = 1,939.76 : x
  2. Step 2: Convert to fraction form
    2,273.84/3,422.76 = 1,939.76/x
  3. Step 3: Cross multiply
    2,273.84x = 3,422.76 × 1,939.76
  4. Step 4: Simplify right side
    2,273.84x = 6,639,332.94
  5. Step 5: Solve for x
    x = 6,639,332.94/2,273.84
  6. Step 6: Final answer
    x = 2,919.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.