Home / 3,391.50-5,087.20-1,200.24

Finding the Fourth Proportional to 3,391.50, 5,087.20 and 1,200.24

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Solution

The fourth proportional to 3,391.50, 5,087.20 and 1,200.24 is: 1,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.50 : 5,087.20 = 1,200.24 : x
  2. Step 2: Convert to fraction form
    3,391.50/5,087.20 = 1,200.24/x
  3. Step 3: Cross multiply
    3,391.50x = 5,087.20 × 1,200.24
  4. Step 4: Simplify right side
    3,391.50x = 6,105,860.93
  5. Step 5: Solve for x
    x = 6,105,860.93/3,391.50
  6. Step 6: Final answer
    x = 1,800.34

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1.5x scale

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.