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Finding the Fourth Proportional to 2,134.72, 3,203.16 and 836.92

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Solution

The fourth proportional to 2,134.72, 3,203.16 and 836.92 is: 1,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.72 : 3,203.16 = 836.92 : x
  2. Step 2: Convert to fraction form
    2,134.72/3,203.16 = 836.92/x
  3. Step 3: Cross multiply
    2,134.72x = 3,203.16 × 836.92
  4. Step 4: Simplify right side
    2,134.72x = 2,680,788.67
  5. Step 5: Solve for x
    x = 2,680,788.67/2,134.72
  6. Step 6: Final answer
    x = 1,255.80

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1.5x scale

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.