Home / 3,821.11-5,266.49-3,111.44

Finding the Fourth Proportional to 3,821.11, 5,266.49 and 3,111.44

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Solution

The fourth proportional to 3,821.11, 5,266.49 and 3,111.44 is: 4,288.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.11 : 5,266.49 = 3,111.44 : x
  2. Step 2: Convert to fraction form
    3,821.11/5,266.49 = 3,111.44/x
  3. Step 3: Cross multiply
    3,821.11x = 5,266.49 × 3,111.44
  4. Step 4: Simplify right side
    3,821.11x = 16,386,325.76
  5. Step 5: Solve for x
    x = 16,386,325.76/3,821.11
  6. Step 6: Final answer
    x = 4,288.37

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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.