Home / 1,981.67-2,734.52-1,184.84

Finding the Fourth Proportional to 1,981.67, 2,734.52 and 1,184.84

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Solution

The fourth proportional to 1,981.67, 2,734.52 and 1,184.84 is: 1,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.67 : 2,734.52 = 1,184.84 : x
  2. Step 2: Convert to fraction form
    1,981.67/2,734.52 = 1,184.84/x
  3. Step 3: Cross multiply
    1,981.67x = 2,734.52 × 1,184.84
  4. Step 4: Simplify right side
    1,981.67x = 3,239,949.08
  5. Step 5: Solve for x
    x = 3,239,949.08/1,981.67
  6. Step 6: Final answer
    x = 1,634.96

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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.