Home / 3,865.68-5,799.04-1,399.84

Finding the Fourth Proportional to 3,865.68, 5,799.04 and 1,399.84

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Solution

The fourth proportional to 3,865.68, 5,799.04 and 1,399.84 is: 2,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.68 : 5,799.04 = 1,399.84 : x
  2. Step 2: Convert to fraction form
    3,865.68/5,799.04 = 1,399.84/x
  3. Step 3: Cross multiply
    3,865.68x = 5,799.04 × 1,399.84
  4. Step 4: Simplify right side
    3,865.68x = 8,117,728.15
  5. Step 5: Solve for x
    x = 8,117,728.15/3,865.68
  6. Step 6: Final answer
    x = 2,099.95

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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.