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Finding the Fourth Proportional to 1,633.25, 2,253.86 and 887.19

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Solution

The fourth proportional to 1,633.25, 2,253.86 and 887.19 is: 1,224.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.25 : 2,253.86 = 887.19 : x
  2. Step 2: Convert to fraction form
    1,633.25/2,253.86 = 887.19/x
  3. Step 3: Cross multiply
    1,633.25x = 2,253.86 × 887.19
  4. Step 4: Simplify right side
    1,633.25x = 1,999,597.62
  5. Step 5: Solve for x
    x = 1,999,597.62/1,633.25
  6. Step 6: Final answer
    x = 1,224.31

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Half scale
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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.