Home / 3,161.02-4,742.13-1,213.07

Finding the Fourth Proportional to 3,161.02, 4,742.13 and 1,213.07

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Solution

The fourth proportional to 3,161.02, 4,742.13 and 1,213.07 is: 1,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.02 : 4,742.13 = 1,213.07 : x
  2. Step 2: Convert to fraction form
    3,161.02/4,742.13 = 1,213.07/x
  3. Step 3: Cross multiply
    3,161.02x = 4,742.13 × 1,213.07
  4. Step 4: Simplify right side
    3,161.02x = 5,752,529.81
  5. Step 5: Solve for x
    x = 5,752,529.81/3,161.02
  6. Step 6: Final answer
    x = 1,819.84

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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.