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Finding the Fourth Proportional to 1,889.88, 2,837.28 and 1,519.92

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Solution

The fourth proportional to 1,889.88, 2,837.28 and 1,519.92 is: 2,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.88 : 2,837.28 = 1,519.92 : x
  2. Step 2: Convert to fraction form
    1,889.88/2,837.28 = 1,519.92/x
  3. Step 3: Cross multiply
    1,889.88x = 2,837.28 × 1,519.92
  4. Step 4: Simplify right side
    1,889.88x = 4,312,438.62
  5. Step 5: Solve for x
    x = 4,312,438.62/1,889.88
  6. Step 6: Final answer
    x = 2,281.86

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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.