Home / 2,553.12-3,811.05-2,190.24

Finding the Fourth Proportional to 2,553.12, 3,811.05 and 2,190.24

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Solution

The fourth proportional to 2,553.12, 3,811.05 and 2,190.24 is: 3,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.12 : 3,811.05 = 2,190.24 : x
  2. Step 2: Convert to fraction form
    2,553.12/3,811.05 = 2,190.24/x
  3. Step 3: Cross multiply
    2,553.12x = 3,811.05 × 2,190.24
  4. Step 4: Simplify right side
    2,553.12x = 8,347,114.15
  5. Step 5: Solve for x
    x = 8,347,114.15/2,553.12
  6. Step 6: Final answer
    x = 3,269.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.