Home / 2,781.70-4,169.30-1,625.02

Finding the Fourth Proportional to 2,781.70, 4,169.30 and 1,625.02

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Solution

The fourth proportional to 2,781.70, 4,169.30 and 1,625.02 is: 2,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.70 : 4,169.30 = 1,625.02 : x
  2. Step 2: Convert to fraction form
    2,781.70/4,169.30 = 1,625.02/x
  3. Step 3: Cross multiply
    2,781.70x = 4,169.30 × 1,625.02
  4. Step 4: Simplify right side
    2,781.70x = 6,775,195.89
  5. Step 5: Solve for x
    x = 6,775,195.89/2,781.70
  6. Step 6: Final answer
    x = 2,435.63

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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.