Home / 3,642.60-5,451.30-2,182.80

Finding the Fourth Proportional to 3,642.60, 5,451.30 and 2,182.80

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Solution

The fourth proportional to 3,642.60, 5,451.30 and 2,182.80 is: 3,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.60 : 5,451.30 = 2,182.80 : x
  2. Step 2: Convert to fraction form
    3,642.60/5,451.30 = 2,182.80/x
  3. Step 3: Cross multiply
    3,642.60x = 5,451.30 × 2,182.80
  4. Step 4: Simplify right side
    3,642.60x = 11,899,097.64
  5. Step 5: Solve for x
    x = 11,899,097.64/3,642.60
  6. Step 6: Final answer
    x = 3,266.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.