Home / 5,402.68-8,099.15-1,939.12

Finding the Fourth Proportional to 5,402.68, 8,099.15 and 1,939.12

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Solution

The fourth proportional to 5,402.68, 8,099.15 and 1,939.12 is: 2,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.68 : 8,099.15 = 1,939.12 : x
  2. Step 2: Convert to fraction form
    5,402.68/8,099.15 = 1,939.12/x
  3. Step 3: Cross multiply
    5,402.68x = 8,099.15 × 1,939.12
  4. Step 4: Simplify right side
    5,402.68x = 15,705,223.75
  5. Step 5: Solve for x
    x = 15,705,223.75/5,402.68
  6. Step 6: Final answer
    x = 2,906.93

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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.