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Finding the Fourth Proportional to 3,760.16, 5,640.22 and 2,939.13

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Solution

The fourth proportional to 3,760.16, 5,640.22 and 2,939.13 is: 4,408.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.16 : 5,640.22 = 2,939.13 : x
  2. Step 2: Convert to fraction form
    3,760.16/5,640.22 = 2,939.13/x
  3. Step 3: Cross multiply
    3,760.16x = 5,640.22 × 2,939.13
  4. Step 4: Simplify right side
    3,760.16x = 16,577,296.91
  5. Step 5: Solve for x
    x = 16,577,296.91/3,760.16
  6. Step 6: Final answer
    x = 4,408.67

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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.