Home / 2,747.35-4,121.43-1,777.78

Finding the Fourth Proportional to 2,747.35, 4,121.43 and 1,777.78

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Solution

The fourth proportional to 2,747.35, 4,121.43 and 1,777.78 is: 2,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.35 : 4,121.43 = 1,777.78 : x
  2. Step 2: Convert to fraction form
    2,747.35/4,121.43 = 1,777.78/x
  3. Step 3: Cross multiply
    2,747.35x = 4,121.43 × 1,777.78
  4. Step 4: Simplify right side
    2,747.35x = 7,326,995.83
  5. Step 5: Solve for x
    x = 7,326,995.83/2,747.35
  6. Step 6: Final answer
    x = 2,666.93

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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.