Home / 2,254.23-3,380.22-1,431.90

Finding the Fourth Proportional to 2,254.23, 3,380.22 and 1,431.90

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Solution

The fourth proportional to 2,254.23, 3,380.22 and 1,431.90 is: 2,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.23 : 3,380.22 = 1,431.90 : x
  2. Step 2: Convert to fraction form
    2,254.23/3,380.22 = 1,431.90/x
  3. Step 3: Cross multiply
    2,254.23x = 3,380.22 × 1,431.90
  4. Step 4: Simplify right side
    2,254.23x = 4,840,137.02
  5. Step 5: Solve for x
    x = 4,840,137.02/2,254.23
  6. Step 6: Final answer
    x = 2,147.14

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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.