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Finding the Fourth Proportional to 1,889.34, 2,833.29 and 735.90

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Solution

The fourth proportional to 1,889.34, 2,833.29 and 735.90 is: 1,103.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.34 : 2,833.29 = 735.90 : x
  2. Step 2: Convert to fraction form
    1,889.34/2,833.29 = 735.90/x
  3. Step 3: Cross multiply
    1,889.34x = 2,833.29 × 735.90
  4. Step 4: Simplify right side
    1,889.34x = 2,085,018.11
  5. Step 5: Solve for x
    x = 2,085,018.11/1,889.34
  6. Step 6: Final answer
    x = 1,103.57

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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.