Home / 3,418.35-5,127.35-1,338.74

Finding the Fourth Proportional to 3,418.35, 5,127.35 and 1,338.74

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Solution

The fourth proportional to 3,418.35, 5,127.35 and 1,338.74 is: 2,008.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.35 : 5,127.35 = 1,338.74 : x
  2. Step 2: Convert to fraction form
    3,418.35/5,127.35 = 1,338.74/x
  3. Step 3: Cross multiply
    3,418.35x = 5,127.35 × 1,338.74
  4. Step 4: Simplify right side
    3,418.35x = 6,864,166.25
  5. Step 5: Solve for x
    x = 6,864,166.25/3,418.35
  6. Step 6: Final answer
    x = 2,008.03

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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.