Home / 3,390.70-5,086.44-1,199.68

Finding the Fourth Proportional to 3,390.70, 5,086.44 and 1,199.68

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Solution

The fourth proportional to 3,390.70, 5,086.44 and 1,199.68 is: 1,799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.70 : 5,086.44 = 1,199.68 : x
  2. Step 2: Convert to fraction form
    3,390.70/5,086.44 = 1,199.68/x
  3. Step 3: Cross multiply
    3,390.70x = 5,086.44 × 1,199.68
  4. Step 4: Simplify right side
    3,390.70x = 6,102,100.34
  5. Step 5: Solve for x
    x = 6,102,100.34/3,390.70
  6. Step 6: Final answer
    x = 1,799.66

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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.