Home / 2,288.71-3,157.68-1,293.90

Finding the Fourth Proportional to 2,288.71, 3,157.68 and 1,293.90

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Solution

The fourth proportional to 2,288.71, 3,157.68 and 1,293.90 is: 1,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.71 : 3,157.68 = 1,293.90 : x
  2. Step 2: Convert to fraction form
    2,288.71/3,157.68 = 1,293.90/x
  3. Step 3: Cross multiply
    2,288.71x = 3,157.68 × 1,293.90
  4. Step 4: Simplify right side
    2,288.71x = 4,085,722.15
  5. Step 5: Solve for x
    x = 4,085,722.15/2,288.71
  6. Step 6: Final answer
    x = 1,785.16

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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.