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Finding the Fourth Proportional to 5,199.59, 7,791.19 and 1,908.16

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Solution

The fourth proportional to 5,199.59, 7,791.19 and 1,908.16 is: 2,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.59 : 7,791.19 = 1,908.16 : x
  2. Step 2: Convert to fraction form
    5,199.59/7,791.19 = 1,908.16/x
  3. Step 3: Cross multiply
    5,199.59x = 7,791.19 × 1,908.16
  4. Step 4: Simplify right side
    5,199.59x = 14,866,812.86
  5. Step 5: Solve for x
    x = 14,866,812.86/5,199.59
  6. Step 6: Final answer
    x = 2,859.23

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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.