Home / 1,677.90-2,512.22-1,265.80

Finding the Fourth Proportional to 1,677.90, 2,512.22 and 1,265.80

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Solution

The fourth proportional to 1,677.90, 2,512.22 and 1,265.80 is: 1,895.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.90 : 2,512.22 = 1,265.80 : x
  2. Step 2: Convert to fraction form
    1,677.90/2,512.22 = 1,265.80/x
  3. Step 3: Cross multiply
    1,677.90x = 2,512.22 × 1,265.80
  4. Step 4: Simplify right side
    1,677.90x = 3,179,968.08
  5. Step 5: Solve for x
    x = 3,179,968.08/1,677.90
  6. Step 6: Final answer
    x = 1,895.21

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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.