Home / 1,778.22-2,452.95-1,379.70

Finding the Fourth Proportional to 1,778.22, 2,452.95 and 1,379.70

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Solution

The fourth proportional to 1,778.22, 2,452.95 and 1,379.70 is: 1,903.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.22 : 2,452.95 = 1,379.70 : x
  2. Step 2: Convert to fraction form
    1,778.22/2,452.95 = 1,379.70/x
  3. Step 3: Cross multiply
    1,778.22x = 2,452.95 × 1,379.70
  4. Step 4: Simplify right side
    1,778.22x = 3,384,335.12
  5. Step 5: Solve for x
    x = 3,384,335.12/1,778.22
  6. Step 6: Final answer
    x = 1,903.22

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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.