Home / 3,572.27-5,359.21-1,928.78

Finding the Fourth Proportional to 3,572.27, 5,359.21 and 1,928.78

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Solution

The fourth proportional to 3,572.27, 5,359.21 and 1,928.78 is: 2,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.27 : 5,359.21 = 1,928.78 : x
  2. Step 2: Convert to fraction form
    3,572.27/5,359.21 = 1,928.78/x
  3. Step 3: Cross multiply
    3,572.27x = 5,359.21 × 1,928.78
  4. Step 4: Simplify right side
    3,572.27x = 10,336,737.06
  5. Step 5: Solve for x
    x = 10,336,737.06/3,572.27
  6. Step 6: Final answer
    x = 2,893.60

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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.