Home / 3,863.64-5,331.78-2,291.52

Finding the Fourth Proportional to 3,863.64, 5,331.78 and 2,291.52

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Solution

The fourth proportional to 3,863.64, 5,331.78 and 2,291.52 is: 3,162.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.64 : 5,331.78 = 2,291.52 : x
  2. Step 2: Convert to fraction form
    3,863.64/5,331.78 = 2,291.52/x
  3. Step 3: Cross multiply
    3,863.64x = 5,331.78 × 2,291.52
  4. Step 4: Simplify right side
    3,863.64x = 12,217,880.51
  5. Step 5: Solve for x
    x = 12,217,880.51/3,863.64
  6. Step 6: Final answer
    x = 3,162.27

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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.