Home / 1,974.08-2,724.33-1,309.80

Finding the Fourth Proportional to 1,974.08, 2,724.33 and 1,309.80

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Solution

The fourth proportional to 1,974.08, 2,724.33 and 1,309.80 is: 1,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.08 : 2,724.33 = 1,309.80 : x
  2. Step 2: Convert to fraction form
    1,974.08/2,724.33 = 1,309.80/x
  3. Step 3: Cross multiply
    1,974.08x = 2,724.33 × 1,309.80
  4. Step 4: Simplify right side
    1,974.08x = 3,568,327.43
  5. Step 5: Solve for x
    x = 3,568,327.43/1,974.08
  6. Step 6: Final answer
    x = 1,807.59

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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.