Home / 3,745.40-5,168.72-2,253.03

Finding the Fourth Proportional to 3,745.40, 5,168.72 and 2,253.03

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Solution

The fourth proportional to 3,745.40, 5,168.72 and 2,253.03 is: 3,109.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.40 : 5,168.72 = 2,253.03 : x
  2. Step 2: Convert to fraction form
    3,745.40/5,168.72 = 2,253.03/x
  3. Step 3: Cross multiply
    3,745.40x = 5,168.72 × 2,253.03
  4. Step 4: Simplify right side
    3,745.40x = 11,645,269.96
  5. Step 5: Solve for x
    x = 11,645,269.96/3,745.40
  6. Step 6: Final answer
    x = 3,109.22

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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.