Home / 3,211.88-4,820.57-2,289.70

Finding the Fourth Proportional to 3,211.88, 4,820.57 and 2,289.70

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Solution

The fourth proportional to 3,211.88, 4,820.57 and 2,289.70 is: 3,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.88 : 4,820.57 = 2,289.70 : x
  2. Step 2: Convert to fraction form
    3,211.88/4,820.57 = 2,289.70/x
  3. Step 3: Cross multiply
    3,211.88x = 4,820.57 × 2,289.70
  4. Step 4: Simplify right side
    3,211.88x = 11,037,659.13
  5. Step 5: Solve for x
    x = 11,037,659.13/3,211.88
  6. Step 6: Final answer
    x = 3,436.51

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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.