Home / 3,364.80-5,047.18-1,391.54

Finding the Fourth Proportional to 3,364.80, 5,047.18 and 1,391.54

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Solution

The fourth proportional to 3,364.80, 5,047.18 and 1,391.54 is: 2,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.80 : 5,047.18 = 1,391.54 : x
  2. Step 2: Convert to fraction form
    3,364.80/5,047.18 = 1,391.54/x
  3. Step 3: Cross multiply
    3,364.80x = 5,047.18 × 1,391.54
  4. Step 4: Simplify right side
    3,364.80x = 7,023,352.86
  5. Step 5: Solve for x
    x = 7,023,352.86/3,364.80
  6. Step 6: Final answer
    x = 2,087.30

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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.