Home / 2,288.26-3,157.96-1,392.35

Finding the Fourth Proportional to 2,288.26, 3,157.96 and 1,392.35

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Solution

The fourth proportional to 2,288.26, 3,157.96 and 1,392.35 is: 1,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.26 : 3,157.96 = 1,392.35 : x
  2. Step 2: Convert to fraction form
    2,288.26/3,157.96 = 1,392.35/x
  3. Step 3: Cross multiply
    2,288.26x = 3,157.96 × 1,392.35
  4. Step 4: Simplify right side
    2,288.26x = 4,396,990.02
  5. Step 5: Solve for x
    x = 4,396,990.02/2,288.26
  6. Step 6: Final answer
    x = 1,921.55

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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.