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Finding the Fourth Proportional to 1,861.92, 2,792.52 and 563.09

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Solution

The fourth proportional to 1,861.92, 2,792.52 and 563.09 is: 844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.92 : 2,792.52 = 563.09 : x
  2. Step 2: Convert to fraction form
    1,861.92/2,792.52 = 563.09/x
  3. Step 3: Cross multiply
    1,861.92x = 2,792.52 × 563.09
  4. Step 4: Simplify right side
    1,861.92x = 1,572,426.12
  5. Step 5: Solve for x
    x = 1,572,426.12/1,861.92
  6. Step 6: Final answer
    x = 844.52

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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.