Home / 3,418.45-5,127.93-1,227.20

Finding the Fourth Proportional to 3,418.45, 5,127.93 and 1,227.20

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Solution

The fourth proportional to 3,418.45, 5,127.93 and 1,227.20 is: 1,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.45 : 5,127.93 = 1,227.20 : x
  2. Step 2: Convert to fraction form
    3,418.45/5,127.93 = 1,227.20/x
  3. Step 3: Cross multiply
    3,418.45x = 5,127.93 × 1,227.20
  4. Step 4: Simplify right side
    3,418.45x = 6,292,995.70
  5. Step 5: Solve for x
    x = 6,292,995.70/3,418.45
  6. Step 6: Final answer
    x = 1,840.89

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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.