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Finding the Fourth Proportional to 1,273.36, 1,755 and 1,095.88

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Solution

The fourth proportional to 1,273.36, 1,755 and 1,095.88 is: 1,510.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.36 : 1,755 = 1,095.88 : x
  2. Step 2: Convert to fraction form
    1,273.36/1,755 = 1,095.88/x
  3. Step 3: Cross multiply
    1,273.36x = 1,755 × 1,095.88
  4. Step 4: Simplify right side
    1,273.36x = 1,923,265.01
  5. Step 5: Solve for x
    x = 1,923,265.01/1,273.36
  6. Step 6: Final answer
    x = 1,510.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.