Home / 2,153.11-3,229.62-1,226.69

Finding the Fourth Proportional to 2,153.11, 3,229.62 and 1,226.69

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Solution

The fourth proportional to 2,153.11, 3,229.62 and 1,226.69 is: 1,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.11 : 3,229.62 = 1,226.69 : x
  2. Step 2: Convert to fraction form
    2,153.11/3,229.62 = 1,226.69/x
  3. Step 3: Cross multiply
    2,153.11x = 3,229.62 × 1,226.69
  4. Step 4: Simplify right side
    2,153.11x = 3,961,742.56
  5. Step 5: Solve for x
    x = 3,961,742.56/2,153.11
  6. Step 6: Final answer
    x = 1,840.01

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1.5x scale

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.