Home / 5,391.45-8,088.39-2,793.78

Finding the Fourth Proportional to 5,391.45, 8,088.39 and 2,793.78

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Solution

The fourth proportional to 5,391.45, 8,088.39 and 2,793.78 is: 4,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.45 : 8,088.39 = 2,793.78 : x
  2. Step 2: Convert to fraction form
    5,391.45/8,088.39 = 2,793.78/x
  3. Step 3: Cross multiply
    5,391.45x = 8,088.39 × 2,793.78
  4. Step 4: Simplify right side
    5,391.45x = 22,597,182.21
  5. Step 5: Solve for x
    x = 22,597,182.21/5,391.45
  6. Step 6: Final answer
    x = 4,191.30

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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.