Home / 3,839.28-5,759.64-1,890.48

Finding the Fourth Proportional to 3,839.28, 5,759.64 and 1,890.48

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Solution

The fourth proportional to 3,839.28, 5,759.64 and 1,890.48 is: 2,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.28 : 5,759.64 = 1,890.48 : x
  2. Step 2: Convert to fraction form
    3,839.28/5,759.64 = 1,890.48/x
  3. Step 3: Cross multiply
    3,839.28x = 5,759.64 × 1,890.48
  4. Step 4: Simplify right side
    3,839.28x = 10,888,484.23
  5. Step 5: Solve for x
    x = 10,888,484.23/3,839.28
  6. Step 6: Final answer
    x = 2,836.07

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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.