Home / 3,313.19-4,969.49-847.96

Finding the Fourth Proportional to 3,313.19, 4,969.49 and 847.96

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Solution

The fourth proportional to 3,313.19, 4,969.49 and 847.96 is: 1,271.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.19 : 4,969.49 = 847.96 : x
  2. Step 2: Convert to fraction form
    3,313.19/4,969.49 = 847.96/x
  3. Step 3: Cross multiply
    3,313.19x = 4,969.49 × 847.96
  4. Step 4: Simplify right side
    3,313.19x = 4,213,912.08
  5. Step 5: Solve for x
    x = 4,213,912.08/3,313.19
  6. Step 6: Final answer
    x = 1,271.86

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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.