Home / 2,153.36-3,229.36-1,372.26

Finding the Fourth Proportional to 2,153.36, 3,229.36 and 1,372.26

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Solution

The fourth proportional to 2,153.36, 3,229.36 and 1,372.26 is: 2,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.36 : 3,229.36 = 1,372.26 : x
  2. Step 2: Convert to fraction form
    2,153.36/3,229.36 = 1,372.26/x
  3. Step 3: Cross multiply
    2,153.36x = 3,229.36 × 1,372.26
  4. Step 4: Simplify right side
    2,153.36x = 4,431,521.55
  5. Step 5: Solve for x
    x = 4,431,521.55/2,153.36
  6. Step 6: Final answer
    x = 2,057.96

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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.