Home / 2,778.28-3,833.70-1,599.40

Finding the Fourth Proportional to 2,778.28, 3,833.70 and 1,599.40

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Solution

The fourth proportional to 2,778.28, 3,833.70 and 1,599.40 is: 2,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.28 : 3,833.70 = 1,599.40 : x
  2. Step 2: Convert to fraction form
    2,778.28/3,833.70 = 1,599.40/x
  3. Step 3: Cross multiply
    2,778.28x = 3,833.70 × 1,599.40
  4. Step 4: Simplify right side
    2,778.28x = 6,131,619.78
  5. Step 5: Solve for x
    x = 6,131,619.78/2,778.28
  6. Step 6: Final answer
    x = 2,206.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.