Home / 3,788.16-5,677.46-2,692.78

Finding the Fourth Proportional to 3,788.16, 5,677.46 and 2,692.78

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Solution

The fourth proportional to 3,788.16, 5,677.46 and 2,692.78 is: 4,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.16 : 5,677.46 = 2,692.78 : x
  2. Step 2: Convert to fraction form
    3,788.16/5,677.46 = 2,692.78/x
  3. Step 3: Cross multiply
    3,788.16x = 5,677.46 × 2,692.78
  4. Step 4: Simplify right side
    3,788.16x = 15,288,150.74
  5. Step 5: Solve for x
    x = 15,288,150.74/3,788.16
  6. Step 6: Final answer
    x = 4,035.77

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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.