Home / 1,981.39-2,734.12-1,097.17

Finding the Fourth Proportional to 1,981.39, 2,734.12 and 1,097.17

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Solution

The fourth proportional to 1,981.39, 2,734.12 and 1,097.17 is: 1,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.39 : 2,734.12 = 1,097.17 : x
  2. Step 2: Convert to fraction form
    1,981.39/2,734.12 = 1,097.17/x
  3. Step 3: Cross multiply
    1,981.39x = 2,734.12 × 1,097.17
  4. Step 4: Simplify right side
    1,981.39x = 2,999,794.44
  5. Step 5: Solve for x
    x = 2,999,794.44/1,981.39
  6. Step 6: Final answer
    x = 1,513.98

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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.