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Finding the Fourth Proportional to 3,880.71, 5,811.79 and 2,233.79

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Solution

The fourth proportional to 3,880.71, 5,811.79 and 2,233.79 is: 3,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.71 : 5,811.79 = 2,233.79 : x
  2. Step 2: Convert to fraction form
    3,880.71/5,811.79 = 2,233.79/x
  3. Step 3: Cross multiply
    3,880.71x = 5,811.79 × 2,233.79
  4. Step 4: Simplify right side
    3,880.71x = 12,982,318.38
  5. Step 5: Solve for x
    x = 12,982,318.38/3,880.71
  6. Step 6: Final answer
    x = 3,345.35

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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.