Home / 7,438.22-11,157.32-1,891.98

Finding the Fourth Proportional to 7,438.22, 11,157.32 and 1,891.98

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Solution

The fourth proportional to 7,438.22, 11,157.32 and 1,891.98 is: 2,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.22 : 11,157.32 = 1,891.98 : x
  2. Step 2: Convert to fraction form
    7,438.22/11,157.32 = 1,891.98/x
  3. Step 3: Cross multiply
    7,438.22x = 11,157.32 × 1,891.98
  4. Step 4: Simplify right side
    7,438.22x = 21,109,426.29
  5. Step 5: Solve for x
    x = 21,109,426.29/7,438.22
  6. Step 6: Final answer
    x = 2,837.97

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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.