Home / 1,980.44-2,732.10-1,282.04

Finding the Fourth Proportional to 1,980.44, 2,732.10 and 1,282.04

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Solution

The fourth proportional to 1,980.44, 2,732.10 and 1,282.04 is: 1,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.44 : 2,732.10 = 1,282.04 : x
  2. Step 2: Convert to fraction form
    1,980.44/2,732.10 = 1,282.04/x
  3. Step 3: Cross multiply
    1,980.44x = 2,732.10 × 1,282.04
  4. Step 4: Simplify right side
    1,980.44x = 3,502,661.48
  5. Step 5: Solve for x
    x = 3,502,661.48/1,980.44
  6. Step 6: Final answer
    x = 1,768.63

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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.