Home / 1,982.11-2,735.36-1,097.95

Finding the Fourth Proportional to 1,982.11, 2,735.36 and 1,097.95

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Solution

The fourth proportional to 1,982.11, 2,735.36 and 1,097.95 is: 1,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.11 : 2,735.36 = 1,097.95 : x
  2. Step 2: Convert to fraction form
    1,982.11/2,735.36 = 1,097.95/x
  3. Step 3: Cross multiply
    1,982.11x = 2,735.36 × 1,097.95
  4. Step 4: Simplify right side
    1,982.11x = 3,003,288.51
  5. Step 5: Solve for x
    x = 3,003,288.51/1,982.11
  6. Step 6: Final answer
    x = 1,515.20

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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.