Home / 3,765.78-5,197.23-2,193.57

Finding the Fourth Proportional to 3,765.78, 5,197.23 and 2,193.57

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Solution

The fourth proportional to 3,765.78, 5,197.23 and 2,193.57 is: 3,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.78 : 5,197.23 = 2,193.57 : x
  2. Step 2: Convert to fraction form
    3,765.78/5,197.23 = 2,193.57/x
  3. Step 3: Cross multiply
    3,765.78x = 5,197.23 × 2,193.57
  4. Step 4: Simplify right side
    3,765.78x = 11,400,487.81
  5. Step 5: Solve for x
    x = 11,400,487.81/3,765.78
  6. Step 6: Final answer
    x = 3,027.39

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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.