Home / 1,660.06-2,489.41-1,218.57

Finding the Fourth Proportional to 1,660.06, 2,489.41 and 1,218.57

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Solution

The fourth proportional to 1,660.06, 2,489.41 and 1,218.57 is: 1,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.06 : 2,489.41 = 1,218.57 : x
  2. Step 2: Convert to fraction form
    1,660.06/2,489.41 = 1,218.57/x
  3. Step 3: Cross multiply
    1,660.06x = 2,489.41 × 1,218.57
  4. Step 4: Simplify right side
    1,660.06x = 3,033,520.34
  5. Step 5: Solve for x
    x = 3,033,520.34/1,660.06
  6. Step 6: Final answer
    x = 1,827.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.