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Finding the Fourth Proportional to 1,889.28, 2,625.23 and 1,869.03

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Solution

The fourth proportional to 1,889.28, 2,625.23 and 1,869.03 is: 2,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.28 : 2,625.23 = 1,869.03 : x
  2. Step 2: Convert to fraction form
    1,889.28/2,625.23 = 1,869.03/x
  3. Step 3: Cross multiply
    1,889.28x = 2,625.23 × 1,869.03
  4. Step 4: Simplify right side
    1,889.28x = 4,906,638.30
  5. Step 5: Solve for x
    x = 4,906,638.30/1,889.28
  6. Step 6: Final answer
    x = 2,597.09

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.