Home / 5,123.92-7,686.84-2,201.68

Finding the Fourth Proportional to 5,123.92, 7,686.84 and 2,201.68

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Solution

The fourth proportional to 5,123.92, 7,686.84 and 2,201.68 is: 3,302.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.92 : 7,686.84 = 2,201.68 : x
  2. Step 2: Convert to fraction form
    5,123.92/7,686.84 = 2,201.68/x
  3. Step 3: Cross multiply
    5,123.92x = 7,686.84 × 2,201.68
  4. Step 4: Simplify right side
    5,123.92x = 16,923,961.89
  5. Step 5: Solve for x
    x = 16,923,961.89/5,123.92
  6. Step 6: Final answer
    x = 3,302.93

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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.