Home / 3,506.12-5,266.81-2,120.11

Finding the Fourth Proportional to 3,506.12, 5,266.81 and 2,120.11

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Solution

The fourth proportional to 3,506.12, 5,266.81 and 2,120.11 is: 3,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.12 : 5,266.81 = 2,120.11 : x
  2. Step 2: Convert to fraction form
    3,506.12/5,266.81 = 2,120.11/x
  3. Step 3: Cross multiply
    3,506.12x = 5,266.81 × 2,120.11
  4. Step 4: Simplify right side
    3,506.12x = 11,166,216.55
  5. Step 5: Solve for x
    x = 11,166,216.55/3,506.12
  6. Step 6: Final answer
    x = 3,184.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.