Home / 2,753.03-4,129.58-805.28

Finding the Fourth Proportional to 2,753.03, 4,129.58 and 805.28

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Solution

The fourth proportional to 2,753.03, 4,129.58 and 805.28 is: 1,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.03 : 4,129.58 = 805.28 : x
  2. Step 2: Convert to fraction form
    2,753.03/4,129.58 = 805.28/x
  3. Step 3: Cross multiply
    2,753.03x = 4,129.58 × 805.28
  4. Step 4: Simplify right side
    2,753.03x = 3,325,449.55
  5. Step 5: Solve for x
    x = 3,325,449.55/2,753.03
  6. Step 6: Final answer
    x = 1,207.92

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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.