Home / 2,253.85-3,380.20-1,157.33

Finding the Fourth Proportional to 2,253.85, 3,380.20 and 1,157.33

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Solution

The fourth proportional to 2,253.85, 3,380.20 and 1,157.33 is: 1,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.85 : 3,380.20 = 1,157.33 : x
  2. Step 2: Convert to fraction form
    2,253.85/3,380.20 = 1,157.33/x
  3. Step 3: Cross multiply
    2,253.85x = 3,380.20 × 1,157.33
  4. Step 4: Simplify right side
    2,253.85x = 3,912,006.87
  5. Step 5: Solve for x
    x = 3,912,006.87/2,253.85
  6. Step 6: Final answer
    x = 1,735.70

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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.