Home / 3,177.76-4,764.96-1,228

Finding the Fourth Proportional to 3,177.76, 4,764.96 and 1,228

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Solution

The fourth proportional to 3,177.76, 4,764.96 and 1,228 is: 1,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.76 : 4,764.96 = 1,228 : x
  2. Step 2: Convert to fraction form
    3,177.76/4,764.96 = 1,228/x
  3. Step 3: Cross multiply
    3,177.76x = 4,764.96 × 1,228
  4. Step 4: Simplify right side
    3,177.76x = 5,851,370.88
  5. Step 5: Solve for x
    x = 5,851,370.88/3,177.76
  6. Step 6: Final answer
    x = 1,841.35

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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.