Home / 3,418.90-5,125.54-1,338.52

Finding the Fourth Proportional to 3,418.90, 5,125.54 and 1,338.52

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Solution

The fourth proportional to 3,418.90, 5,125.54 and 1,338.52 is: 2,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.90 : 5,125.54 = 1,338.52 : x
  2. Step 2: Convert to fraction form
    3,418.90/5,125.54 = 1,338.52/x
  3. Step 3: Cross multiply
    3,418.90x = 5,125.54 × 1,338.52
  4. Step 4: Simplify right side
    3,418.90x = 6,860,637.80
  5. Step 5: Solve for x
    x = 6,860,637.80/3,418.90
  6. Step 6: Final answer
    x = 2,006.68

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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.