Home / 3,880.91-5,816.12-2,123.26

Finding the Fourth Proportional to 3,880.91, 5,816.12 and 2,123.26

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Solution

The fourth proportional to 3,880.91, 5,816.12 and 2,123.26 is: 3,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.91 : 5,816.12 = 2,123.26 : x
  2. Step 2: Convert to fraction form
    3,880.91/5,816.12 = 2,123.26/x
  3. Step 3: Cross multiply
    3,880.91x = 5,816.12 × 2,123.26
  4. Step 4: Simplify right side
    3,880.91x = 12,349,105.87
  5. Step 5: Solve for x
    x = 12,349,105.87/3,880.91
  6. Step 6: Final answer
    x = 3,182.02

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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.