Home / 3,880.14-5,354.79-2,286.87

Finding the Fourth Proportional to 3,880.14, 5,354.79 and 2,286.87

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Solution

The fourth proportional to 3,880.14, 5,354.79 and 2,286.87 is: 3,156.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.14 : 5,354.79 = 2,286.87 : x
  2. Step 2: Convert to fraction form
    3,880.14/5,354.79 = 2,286.87/x
  3. Step 3: Cross multiply
    3,880.14x = 5,354.79 × 2,286.87
  4. Step 4: Simplify right side
    3,880.14x = 12,245,708.61
  5. Step 5: Solve for x
    x = 12,245,708.61/3,880.14
  6. Step 6: Final answer
    x = 3,156.00

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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.