Home / 2,753.91-3,805.70-2,046.78

Finding the Fourth Proportional to 2,753.91, 3,805.70 and 2,046.78

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Solution

The fourth proportional to 2,753.91, 3,805.70 and 2,046.78 is: 2,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.91 : 3,805.70 = 2,046.78 : x
  2. Step 2: Convert to fraction form
    2,753.91/3,805.70 = 2,046.78/x
  3. Step 3: Cross multiply
    2,753.91x = 3,805.70 × 2,046.78
  4. Step 4: Simplify right side
    2,753.91x = 7,789,420.41
  5. Step 5: Solve for x
    x = 7,789,420.41/2,753.91
  6. Step 6: Final answer
    x = 2,828.49

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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.