Home / 3,830.28-5,278.98-3,297.79

Finding the Fourth Proportional to 3,830.28, 5,278.98 and 3,297.79

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Solution

The fourth proportional to 3,830.28, 5,278.98 and 3,297.79 is: 4,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.28 : 5,278.98 = 3,297.79 : x
  2. Step 2: Convert to fraction form
    3,830.28/5,278.98 = 3,297.79/x
  3. Step 3: Cross multiply
    3,830.28x = 5,278.98 × 3,297.79
  4. Step 4: Simplify right side
    3,830.28x = 17,408,967.45
  5. Step 5: Solve for x
    x = 17,408,967.45/3,830.28
  6. Step 6: Final answer
    x = 4,545.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.