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Finding the Fourth Proportional to 1,228.03, 1,841.72 and 837.96

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Solution

The fourth proportional to 1,228.03, 1,841.72 and 837.96 is: 1,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.03 : 1,841.72 = 837.96 : x
  2. Step 2: Convert to fraction form
    1,228.03/1,841.72 = 837.96/x
  3. Step 3: Cross multiply
    1,228.03x = 1,841.72 × 837.96
  4. Step 4: Simplify right side
    1,228.03x = 1,543,280.36
  5. Step 5: Solve for x
    x = 1,543,280.36/1,228.03
  6. Step 6: Final answer
    x = 1,256.71

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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.