Home / 4,781.30-7,161.87-2,186.42

Finding the Fourth Proportional to 4,781.30, 7,161.87 and 2,186.42

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Solution

The fourth proportional to 4,781.30, 7,161.87 and 2,186.42 is: 3,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.30 : 7,161.87 = 2,186.42 : x
  2. Step 2: Convert to fraction form
    4,781.30/7,161.87 = 2,186.42/x
  3. Step 3: Cross multiply
    4,781.30x = 7,161.87 × 2,186.42
  4. Step 4: Simplify right side
    4,781.30x = 15,658,855.81
  5. Step 5: Solve for x
    x = 15,658,855.81/4,781.30
  6. Step 6: Final answer
    x = 3,275.02

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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.