Home / 3,162.52-4,743.68-1,431.14

Finding the Fourth Proportional to 3,162.52, 4,743.68 and 1,431.14

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Solution

The fourth proportional to 3,162.52, 4,743.68 and 1,431.14 is: 2,146.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.52 : 4,743.68 = 1,431.14 : x
  2. Step 2: Convert to fraction form
    3,162.52/4,743.68 = 1,431.14/x
  3. Step 3: Cross multiply
    3,162.52x = 4,743.68 × 1,431.14
  4. Step 4: Simplify right side
    3,162.52x = 6,788,874.90
  5. Step 5: Solve for x
    x = 6,788,874.90/3,162.52
  6. Step 6: Final answer
    x = 2,146.67

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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.