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Finding the Fourth Proportional to 1,260.82, 1,891.01 and 894.49

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Solution

The fourth proportional to 1,260.82, 1,891.01 and 894.49 is: 1,341.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.82 : 1,891.01 = 894.49 : x
  2. Step 2: Convert to fraction form
    1,260.82/1,891.01 = 894.49/x
  3. Step 3: Cross multiply
    1,260.82x = 1,891.01 × 894.49
  4. Step 4: Simplify right side
    1,260.82x = 1,691,489.53
  5. Step 5: Solve for x
    x = 1,691,489.53/1,260.82
  6. Step 6: Final answer
    x = 1,341.58

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Double scale
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1.5x scale

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.