Home / 2,721.25-3,753.84-1,724.82

Finding the Fourth Proportional to 2,721.25, 3,753.84 and 1,724.82

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Solution

The fourth proportional to 2,721.25, 3,753.84 and 1,724.82 is: 2,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.25 : 3,753.84 = 1,724.82 : x
  2. Step 2: Convert to fraction form
    2,721.25/3,753.84 = 1,724.82/x
  3. Step 3: Cross multiply
    2,721.25x = 3,753.84 × 1,724.82
  4. Step 4: Simplify right side
    2,721.25x = 6,474,698.31
  5. Step 5: Solve for x
    x = 6,474,698.31/2,721.25
  6. Step 6: Final answer
    x = 2,379.31

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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.