Home / 4,781.05-7,161.50-2,186.17

Finding the Fourth Proportional to 4,781.05, 7,161.50 and 2,186.17

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Solution

The fourth proportional to 4,781.05, 7,161.50 and 2,186.17 is: 3,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.05 : 7,161.50 = 2,186.17 : x
  2. Step 2: Convert to fraction form
    4,781.05/7,161.50 = 2,186.17/x
  3. Step 3: Cross multiply
    4,781.05x = 7,161.50 × 2,186.17
  4. Step 4: Simplify right side
    4,781.05x = 15,656,245.52
  5. Step 5: Solve for x
    x = 15,656,245.52/4,781.05
  6. Step 6: Final answer
    x = 3,274.65

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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.