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Finding the Fourth Proportional to 892.91, 1,336.64 and 568.51

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Solution

The fourth proportional to 892.91, 1,336.64 and 568.51 is: 851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.91 : 1,336.64 = 568.51 : x
  2. Step 2: Convert to fraction form
    892.91/1,336.64 = 568.51/x
  3. Step 3: Cross multiply
    892.91x = 1,336.64 × 568.51
  4. Step 4: Simplify right side
    892.91x = 759,887.02
  5. Step 5: Solve for x
    x = 759,887.02/892.91
  6. Step 6: Final answer
    x = 851.02

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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.