Home / 5,677.36-8,517.50-1,781.80

Finding the Fourth Proportional to 5,677.36, 8,517.50 and 1,781.80

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Solution

The fourth proportional to 5,677.36, 8,517.50 and 1,781.80 is: 2,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.36 : 8,517.50 = 1,781.80 : x
  2. Step 2: Convert to fraction form
    5,677.36/8,517.50 = 1,781.80/x
  3. Step 3: Cross multiply
    5,677.36x = 8,517.50 × 1,781.80
  4. Step 4: Simplify right side
    5,677.36x = 15,176,481.50
  5. Step 5: Solve for x
    x = 15,176,481.50/5,677.36
  6. Step 6: Final answer
    x = 2,673.16

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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.