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Finding the Fourth Proportional to 1,715.50, 2,569.74 and 892.27

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Solution

The fourth proportional to 1,715.50, 2,569.74 and 892.27 is: 1,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.50 : 2,569.74 = 892.27 : x
  2. Step 2: Convert to fraction form
    1,715.50/2,569.74 = 892.27/x
  3. Step 3: Cross multiply
    1,715.50x = 2,569.74 × 892.27
  4. Step 4: Simplify right side
    1,715.50x = 2,292,901.91
  5. Step 5: Solve for x
    x = 2,292,901.91/1,715.50
  6. Step 6: Final answer
    x = 1,336.58

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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.