Home / 3,821.28-5,270.44-3,291.09

Finding the Fourth Proportional to 3,821.28, 5,270.44 and 3,291.09

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Solution

The fourth proportional to 3,821.28, 5,270.44 and 3,291.09 is: 4,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.28 : 5,270.44 = 3,291.09 : x
  2. Step 2: Convert to fraction form
    3,821.28/5,270.44 = 3,291.09/x
  3. Step 3: Cross multiply
    3,821.28x = 5,270.44 × 3,291.09
  4. Step 4: Simplify right side
    3,821.28x = 17,345,492.38
  5. Step 5: Solve for x
    x = 17,345,492.38/3,821.28
  6. Step 6: Final answer
    x = 4,539.18

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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.