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Finding the Fourth Proportional to 836.92, 1,155.09 and 522.37

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Solution

The fourth proportional to 836.92, 1,155.09 and 522.37 is: 720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.92 : 1,155.09 = 522.37 : x
  2. Step 2: Convert to fraction form
    836.92/1,155.09 = 522.37/x
  3. Step 3: Cross multiply
    836.92x = 1,155.09 × 522.37
  4. Step 4: Simplify right side
    836.92x = 603,384.36
  5. Step 5: Solve for x
    x = 603,384.36/836.92
  6. Step 6: Final answer
    x = 720.96

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.