Home / 3,972.44-5,482.08-2,180

Finding the Fourth Proportional to 3,972.44, 5,482.08 and 2,180

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Solution

The fourth proportional to 3,972.44, 5,482.08 and 2,180 is: 3,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.44 : 5,482.08 = 2,180 : x
  2. Step 2: Convert to fraction form
    3,972.44/5,482.08 = 2,180/x
  3. Step 3: Cross multiply
    3,972.44x = 5,482.08 × 2,180
  4. Step 4: Simplify right side
    3,972.44x = 11,950,934.40
  5. Step 5: Solve for x
    x = 11,950,934.40/3,972.44
  6. Step 6: Final answer
    x = 3,008.46

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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.