Home / 3,880.24-5,354.30-2,286.79

Finding the Fourth Proportional to 3,880.24, 5,354.30 and 2,286.79

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Solution

The fourth proportional to 3,880.24, 5,354.30 and 2,286.79 is: 3,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.24 : 5,354.30 = 2,286.79 : x
  2. Step 2: Convert to fraction form
    3,880.24/5,354.30 = 2,286.79/x
  3. Step 3: Cross multiply
    3,880.24x = 5,354.30 × 2,286.79
  4. Step 4: Simplify right side
    3,880.24x = 12,244,159.70
  5. Step 5: Solve for x
    x = 12,244,159.70/3,880.24
  6. Step 6: Final answer
    x = 3,155.52

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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.