Home / 1,766.19-2,648.74-1,221.87

Finding the Fourth Proportional to 1,766.19, 2,648.74 and 1,221.87

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Solution

The fourth proportional to 1,766.19, 2,648.74 and 1,221.87 is: 1,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.19 : 2,648.74 = 1,221.87 : x
  2. Step 2: Convert to fraction form
    1,766.19/2,648.74 = 1,221.87/x
  3. Step 3: Cross multiply
    1,766.19x = 2,648.74 × 1,221.87
  4. Step 4: Simplify right side
    1,766.19x = 3,236,396.59
  5. Step 5: Solve for x
    x = 3,236,396.59/1,766.19
  6. Step 6: Final answer
    x = 1,832.42

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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.