Home / 3,928.92-5,423.04-2,251.23

Finding the Fourth Proportional to 3,928.92, 5,423.04 and 2,251.23

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Solution

The fourth proportional to 3,928.92, 5,423.04 and 2,251.23 is: 3,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.92 : 5,423.04 = 2,251.23 : x
  2. Step 2: Convert to fraction form
    3,928.92/5,423.04 = 2,251.23/x
  3. Step 3: Cross multiply
    3,928.92x = 5,423.04 × 2,251.23
  4. Step 4: Simplify right side
    3,928.92x = 12,208,510.34
  5. Step 5: Solve for x
    x = 12,208,510.34/3,928.92
  6. Step 6: Final answer
    x = 3,107.35

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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.