Home / 3,161.43-4,742.55-1,518.35

Finding the Fourth Proportional to 3,161.43, 4,742.55 and 1,518.35

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Solution

The fourth proportional to 3,161.43, 4,742.55 and 1,518.35 is: 2,277.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.43 : 4,742.55 = 1,518.35 : x
  2. Step 2: Convert to fraction form
    3,161.43/4,742.55 = 1,518.35/x
  3. Step 3: Cross multiply
    3,161.43x = 4,742.55 × 1,518.35
  4. Step 4: Simplify right side
    3,161.43x = 7,200,827.08
  5. Step 5: Solve for x
    x = 7,200,827.08/3,161.43
  6. Step 6: Final answer
    x = 2,277.71

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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.