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Finding the Fourth Proportional to 2,536.80, 3,805.20 and 1,443.30

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Solution

The fourth proportional to 2,536.80, 3,805.20 and 1,443.30 is: 2,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,536.80 : 3,805.20 = 1,443.30 : x
  2. Step 2: Convert to fraction form
    2,536.80/3,805.20 = 1,443.30/x
  3. Step 3: Cross multiply
    2,536.80x = 3,805.20 × 1,443.30
  4. Step 4: Simplify right side
    2,536.80x = 5,492,045.16
  5. Step 5: Solve for x
    x = 5,492,045.16/2,536.80
  6. Step 6: Final answer
    x = 2,164.95

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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.