Home / 4,122.56-6,181.92-2,391.68

Finding the Fourth Proportional to 4,122.56, 6,181.92 and 2,391.68

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Solution

The fourth proportional to 4,122.56, 6,181.92 and 2,391.68 is: 3,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.56 : 6,181.92 = 2,391.68 : x
  2. Step 2: Convert to fraction form
    4,122.56/6,181.92 = 2,391.68/x
  3. Step 3: Cross multiply
    4,122.56x = 6,181.92 × 2,391.68
  4. Step 4: Simplify right side
    4,122.56x = 14,785,174.43
  5. Step 5: Solve for x
    x = 14,785,174.43/4,122.56
  6. Step 6: Final answer
    x = 3,586.41

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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.