Home / 1,982.65-2,736.09-1,197.15

Finding the Fourth Proportional to 1,982.65, 2,736.09 and 1,197.15

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Solution

The fourth proportional to 1,982.65, 2,736.09 and 1,197.15 is: 1,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.65 : 2,736.09 = 1,197.15 : x
  2. Step 2: Convert to fraction form
    1,982.65/2,736.09 = 1,197.15/x
  3. Step 3: Cross multiply
    1,982.65x = 2,736.09 × 1,197.15
  4. Step 4: Simplify right side
    1,982.65x = 3,275,510.14
  5. Step 5: Solve for x
    x = 3,275,510.14/1,982.65
  6. Step 6: Final answer
    x = 1,652.09

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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.