Home / 3,213.15-4,817.21-1,266.81

Finding the Fourth Proportional to 3,213.15, 4,817.21 and 1,266.81

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Solution

The fourth proportional to 3,213.15, 4,817.21 and 1,266.81 is: 1,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.15 : 4,817.21 = 1,266.81 : x
  2. Step 2: Convert to fraction form
    3,213.15/4,817.21 = 1,266.81/x
  3. Step 3: Cross multiply
    3,213.15x = 4,817.21 × 1,266.81
  4. Step 4: Simplify right side
    3,213.15x = 6,102,483.47
  5. Step 5: Solve for x
    x = 6,102,483.47/3,213.15
  6. Step 6: Final answer
    x = 1,899.22

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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.