Home / 1,981.10-2,734.01-1,195.13

Finding the Fourth Proportional to 1,981.10, 2,734.01 and 1,195.13

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Solution

The fourth proportional to 1,981.10, 2,734.01 and 1,195.13 is: 1,649.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.10 : 2,734.01 = 1,195.13 : x
  2. Step 2: Convert to fraction form
    1,981.10/2,734.01 = 1,195.13/x
  3. Step 3: Cross multiply
    1,981.10x = 2,734.01 × 1,195.13
  4. Step 4: Simplify right side
    1,981.10x = 3,267,477.73
  5. Step 5: Solve for x
    x = 3,267,477.73/1,981.10
  6. Step 6: Final answer
    x = 1,649.33

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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.