Home / 3,213.05-4,820.78-1,266.61

Finding the Fourth Proportional to 3,213.05, 4,820.78 and 1,266.61

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Solution

The fourth proportional to 3,213.05, 4,820.78 and 1,266.61 is: 1,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.05 : 4,820.78 = 1,266.61 : x
  2. Step 2: Convert to fraction form
    3,213.05/4,820.78 = 1,266.61/x
  3. Step 3: Cross multiply
    3,213.05x = 4,820.78 × 1,266.61
  4. Step 4: Simplify right side
    3,213.05x = 6,106,041.82
  5. Step 5: Solve for x
    x = 6,106,041.82/3,213.05
  6. Step 6: Final answer
    x = 1,900.39

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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.