Home / 3,391.72-5,087.26-1,200.34

Finding the Fourth Proportional to 3,391.72, 5,087.26 and 1,200.34

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Solution

The fourth proportional to 3,391.72, 5,087.26 and 1,200.34 is: 1,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.72 : 5,087.26 = 1,200.34 : x
  2. Step 2: Convert to fraction form
    3,391.72/5,087.26 = 1,200.34/x
  3. Step 3: Cross multiply
    3,391.72x = 5,087.26 × 1,200.34
  4. Step 4: Simplify right side
    3,391.72x = 6,106,441.67
  5. Step 5: Solve for x
    x = 6,106,441.67/3,391.72
  6. Step 6: Final answer
    x = 1,800.40

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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.