Home / 3,851.21-5,776.82-1,077.88

Finding the Fourth Proportional to 3,851.21, 5,776.82 and 1,077.88

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Solution

The fourth proportional to 3,851.21, 5,776.82 and 1,077.88 is: 1,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.21 : 5,776.82 = 1,077.88 : x
  2. Step 2: Convert to fraction form
    3,851.21/5,776.82 = 1,077.88/x
  3. Step 3: Cross multiply
    3,851.21x = 5,776.82 × 1,077.88
  4. Step 4: Simplify right side
    3,851.21x = 6,226,706.99
  5. Step 5: Solve for x
    x = 6,226,706.99/3,851.21
  6. Step 6: Final answer
    x = 1,616.82

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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.