Home / 3,972.80-5,482.16-2,293.44

Finding the Fourth Proportional to 3,972.80, 5,482.16 and 2,293.44

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Solution

The fourth proportional to 3,972.80, 5,482.16 and 2,293.44 is: 3,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.80 : 5,482.16 = 2,293.44 : x
  2. Step 2: Convert to fraction form
    3,972.80/5,482.16 = 2,293.44/x
  3. Step 3: Cross multiply
    3,972.80x = 5,482.16 × 2,293.44
  4. Step 4: Simplify right side
    3,972.80x = 12,573,005.03
  5. Step 5: Solve for x
    x = 12,573,005.03/3,972.80
  6. Step 6: Final answer
    x = 3,164.77

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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.