Home / 3,139.43-4,709.81-1,474.54

Finding the Fourth Proportional to 3,139.43, 4,709.81 and 1,474.54

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Solution

The fourth proportional to 3,139.43, 4,709.81 and 1,474.54 is: 2,212.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.43 : 4,709.81 = 1,474.54 : x
  2. Step 2: Convert to fraction form
    3,139.43/4,709.81 = 1,474.54/x
  3. Step 3: Cross multiply
    3,139.43x = 4,709.81 × 1,474.54
  4. Step 4: Simplify right side
    3,139.43x = 6,944,795.15
  5. Step 5: Solve for x
    x = 6,944,795.15/3,139.43
  6. Step 6: Final answer
    x = 2,212.12

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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.