Home / 3,418.50-5,102.48-3,335.61

Finding the Fourth Proportional to 3,418.50, 5,102.48 and 3,335.61

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Solution

The fourth proportional to 3,418.50, 5,102.48 and 3,335.61 is: 4,978.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.50 : 5,102.48 = 3,335.61 : x
  2. Step 2: Convert to fraction form
    3,418.50/5,102.48 = 3,335.61/x
  3. Step 3: Cross multiply
    3,418.50x = 5,102.48 × 3,335.61
  4. Step 4: Simplify right side
    3,418.50x = 17,019,866.63
  5. Step 5: Solve for x
    x = 17,019,866.63/3,418.50
  6. Step 6: Final answer
    x = 4,978.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.