Home / 3,391.35-5,087.70-1,201.64

Finding the Fourth Proportional to 3,391.35, 5,087.70 and 1,201.64

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Solution

The fourth proportional to 3,391.35, 5,087.70 and 1,201.64 is: 1,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.35 : 5,087.70 = 1,201.64 : x
  2. Step 2: Convert to fraction form
    3,391.35/5,087.70 = 1,201.64/x
  3. Step 3: Cross multiply
    3,391.35x = 5,087.70 × 1,201.64
  4. Step 4: Simplify right side
    3,391.35x = 6,113,558.39
  5. Step 5: Solve for x
    x = 6,113,558.39/3,391.35
  6. Step 6: Final answer
    x = 1,802.69

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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.