Home / 1,981.65-2,734.68-1,097.46

Finding the Fourth Proportional to 1,981.65, 2,734.68 and 1,097.46

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Solution

The fourth proportional to 1,981.65, 2,734.68 and 1,097.46 is: 1,514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.65 : 2,734.68 = 1,097.46 : x
  2. Step 2: Convert to fraction form
    1,981.65/2,734.68 = 1,097.46/x
  3. Step 3: Cross multiply
    1,981.65x = 2,734.68 × 1,097.46
  4. Step 4: Simplify right side
    1,981.65x = 3,001,201.91
  5. Step 5: Solve for x
    x = 3,001,201.91/1,981.65
  6. Step 6: Final answer
    x = 1,514.50

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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.