Home / 2,216.10-3,324.78-1,242.90

Finding the Fourth Proportional to 2,216.10, 3,324.78 and 1,242.90

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Solution

The fourth proportional to 2,216.10, 3,324.78 and 1,242.90 is: 1,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.10 : 3,324.78 = 1,242.90 : x
  2. Step 2: Convert to fraction form
    2,216.10/3,324.78 = 1,242.90/x
  3. Step 3: Cross multiply
    2,216.10x = 3,324.78 × 1,242.90
  4. Step 4: Simplify right side
    2,216.10x = 4,132,369.06
  5. Step 5: Solve for x
    x = 4,132,369.06/2,216.10
  6. Step 6: Final answer
    x = 1,864.70

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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.