Home / 1,980.25-2,732.87-1,096.07

Finding the Fourth Proportional to 1,980.25, 2,732.87 and 1,096.07

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Solution

The fourth proportional to 1,980.25, 2,732.87 and 1,096.07 is: 1,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.25 : 2,732.87 = 1,096.07 : x
  2. Step 2: Convert to fraction form
    1,980.25/2,732.87 = 1,096.07/x
  3. Step 3: Cross multiply
    1,980.25x = 2,732.87 × 1,096.07
  4. Step 4: Simplify right side
    1,980.25x = 2,995,405.90
  5. Step 5: Solve for x
    x = 2,995,405.90/1,980.25
  6. Step 6: Final answer
    x = 1,512.64

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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.