Home / 1,974.09-2,724.21-1,089.87

Finding the Fourth Proportional to 1,974.09, 2,724.21 and 1,089.87

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Solution

The fourth proportional to 1,974.09, 2,724.21 and 1,089.87 is: 1,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.09 : 2,724.21 = 1,089.87 : x
  2. Step 2: Convert to fraction form
    1,974.09/2,724.21 = 1,089.87/x
  3. Step 3: Cross multiply
    1,974.09x = 2,724.21 × 1,089.87
  4. Step 4: Simplify right side
    1,974.09x = 2,969,034.75
  5. Step 5: Solve for x
    x = 2,969,034.75/1,974.09
  6. Step 6: Final answer
    x = 1,504.00

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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.