Home / 3,161.41-4,742.93-1,213.77

Finding the Fourth Proportional to 3,161.41, 4,742.93 and 1,213.77

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Solution

The fourth proportional to 3,161.41, 4,742.93 and 1,213.77 is: 1,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.41 : 4,742.93 = 1,213.77 : x
  2. Step 2: Convert to fraction form
    3,161.41/4,742.93 = 1,213.77/x
  3. Step 3: Cross multiply
    3,161.41x = 4,742.93 × 1,213.77
  4. Step 4: Simplify right side
    3,161.41x = 5,756,826.15
  5. Step 5: Solve for x
    x = 5,756,826.15/3,161.41
  6. Step 6: Final answer
    x = 1,820.97

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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.