Home / 5,199.16-7,780.20-4,165.80

Finding the Fourth Proportional to 5,199.16, 7,780.20 and 4,165.80

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Solution

The fourth proportional to 5,199.16, 7,780.20 and 4,165.80 is: 6,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.16 : 7,780.20 = 4,165.80 : x
  2. Step 2: Convert to fraction form
    5,199.16/7,780.20 = 4,165.80/x
  3. Step 3: Cross multiply
    5,199.16x = 7,780.20 × 4,165.80
  4. Step 4: Simplify right side
    5,199.16x = 32,410,757.16
  5. Step 5: Solve for x
    x = 32,410,757.16/5,199.16
  6. Step 6: Final answer
    x = 6,233.84

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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.