Home / 5,391.20-8,086.80-4,467.80

Finding the Fourth Proportional to 5,391.20, 8,086.80 and 4,467.80

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Solution

The fourth proportional to 5,391.20, 8,086.80 and 4,467.80 is: 6,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.20 : 8,086.80 = 4,467.80 : x
  2. Step 2: Convert to fraction form
    5,391.20/8,086.80 = 4,467.80/x
  3. Step 3: Cross multiply
    5,391.20x = 8,086.80 × 4,467.80
  4. Step 4: Simplify right side
    5,391.20x = 36,130,205.04
  5. Step 5: Solve for x
    x = 36,130,205.04/5,391.20
  6. Step 6: Final answer
    x = 6,701.70

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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.