Home / 3,883.28-5,358.92-2,114.87

Finding the Fourth Proportional to 3,883.28, 5,358.92 and 2,114.87

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Solution

The fourth proportional to 3,883.28, 5,358.92 and 2,114.87 is: 2,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.28 : 5,358.92 = 2,114.87 : x
  2. Step 2: Convert to fraction form
    3,883.28/5,358.92 = 2,114.87/x
  3. Step 3: Cross multiply
    3,883.28x = 5,358.92 × 2,114.87
  4. Step 4: Simplify right side
    3,883.28x = 11,333,381.77
  5. Step 5: Solve for x
    x = 11,333,381.77/3,883.28
  6. Step 6: Final answer
    x = 2,918.51

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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.