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Finding the Fourth Proportional to 1,758.46, 2,638.34 and 833.32

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Solution

The fourth proportional to 1,758.46, 2,638.34 and 833.32 is: 1,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.46 : 2,638.34 = 833.32 : x
  2. Step 2: Convert to fraction form
    1,758.46/2,638.34 = 833.32/x
  3. Step 3: Cross multiply
    1,758.46x = 2,638.34 × 833.32
  4. Step 4: Simplify right side
    1,758.46x = 2,198,581.49
  5. Step 5: Solve for x
    x = 2,198,581.49/1,758.46
  6. Step 6: Final answer
    x = 1,250.29

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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.