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Finding the Fourth Proportional to 5,771.19, 7,959.02 and 3,781.02

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Solution

The fourth proportional to 5,771.19, 7,959.02 and 3,781.02 is: 5,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.19 : 7,959.02 = 3,781.02 : x
  2. Step 2: Convert to fraction form
    5,771.19/7,959.02 = 3,781.02/x
  3. Step 3: Cross multiply
    5,771.19x = 7,959.02 × 3,781.02
  4. Step 4: Simplify right side
    5,771.19x = 30,093,194.90
  5. Step 5: Solve for x
    x = 30,093,194.90/5,771.19
  6. Step 6: Final answer
    x = 5,214.38

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.