Home / 3,112.35-4,669.38-1,631.67

Finding the Fourth Proportional to 3,112.35, 4,669.38 and 1,631.67

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Solution

The fourth proportional to 3,112.35, 4,669.38 and 1,631.67 is: 2,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.35 : 4,669.38 = 1,631.67 : x
  2. Step 2: Convert to fraction form
    3,112.35/4,669.38 = 1,631.67/x
  3. Step 3: Cross multiply
    3,112.35x = 4,669.38 × 1,631.67
  4. Step 4: Simplify right side
    3,112.35x = 7,618,887.26
  5. Step 5: Solve for x
    x = 7,618,887.26/3,112.35
  6. Step 6: Final answer
    x = 2,447.95

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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.