Home / 3,306.87-4,985.33-3,128.26

Finding the Fourth Proportional to 3,306.87, 4,985.33 and 3,128.26

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Solution

The fourth proportional to 3,306.87, 4,985.33 and 3,128.26 is: 4,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.87 : 4,985.33 = 3,128.26 : x
  2. Step 2: Convert to fraction form
    3,306.87/4,985.33 = 3,128.26/x
  3. Step 3: Cross multiply
    3,306.87x = 4,985.33 × 3,128.26
  4. Step 4: Simplify right side
    3,306.87x = 15,595,408.43
  5. Step 5: Solve for x
    x = 15,595,408.43/3,306.87
  6. Step 6: Final answer
    x = 4,716.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.