Home / 5,212.66-7,193.46-2,854.78

Finding the Fourth Proportional to 5,212.66, 7,193.46 and 2,854.78

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Solution

The fourth proportional to 5,212.66, 7,193.46 and 2,854.78 is: 3,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.66 : 7,193.46 = 2,854.78 : x
  2. Step 2: Convert to fraction form
    5,212.66/7,193.46 = 2,854.78/x
  3. Step 3: Cross multiply
    5,212.66x = 7,193.46 × 2,854.78
  4. Step 4: Simplify right side
    5,212.66x = 20,535,745.74
  5. Step 5: Solve for x
    x = 20,535,745.74/5,212.66
  6. Step 6: Final answer
    x = 3,939.59

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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.