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Finding the Fourth Proportional to 1,261.99, 1,893 and 337.54

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Solution

The fourth proportional to 1,261.99, 1,893 and 337.54 is: 506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.99 : 1,893 = 337.54 : x
  2. Step 2: Convert to fraction form
    1,261.99/1,893 = 337.54/x
  3. Step 3: Cross multiply
    1,261.99x = 1,893 × 337.54
  4. Step 4: Simplify right side
    1,261.99x = 638,963.22
  5. Step 5: Solve for x
    x = 638,963.22/1,261.99
  6. Step 6: Final answer
    x = 506.31

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Double scale
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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.