Home / 3,965.76-5,949.48-1,192.20

Finding the Fourth Proportional to 3,965.76, 5,949.48 and 1,192.20

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Solution

The fourth proportional to 3,965.76, 5,949.48 and 1,192.20 is: 1,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.76 : 5,949.48 = 1,192.20 : x
  2. Step 2: Convert to fraction form
    3,965.76/5,949.48 = 1,192.20/x
  3. Step 3: Cross multiply
    3,965.76x = 5,949.48 × 1,192.20
  4. Step 4: Simplify right side
    3,965.76x = 7,092,970.06
  5. Step 5: Solve for x
    x = 7,092,970.06/3,965.76
  6. Step 6: Final answer
    x = 1,788.55

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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.