Home / 4,221.75-5,826.43-2,333.78

Finding the Fourth Proportional to 4,221.75, 5,826.43 and 2,333.78

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Solution

The fourth proportional to 4,221.75, 5,826.43 and 2,333.78 is: 3,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.75 : 5,826.43 = 2,333.78 : x
  2. Step 2: Convert to fraction form
    4,221.75/5,826.43 = 2,333.78/x
  3. Step 3: Cross multiply
    4,221.75x = 5,826.43 × 2,333.78
  4. Step 4: Simplify right side
    4,221.75x = 13,597,605.81
  5. Step 5: Solve for x
    x = 13,597,605.81/4,221.75
  6. Step 6: Final answer
    x = 3,220.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.