Home / 1,633.19-2,253.83-887.17

Finding the Fourth Proportional to 1,633.19, 2,253.83 and 887.17

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Solution

The fourth proportional to 1,633.19, 2,253.83 and 887.17 is: 1,224.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.19 : 2,253.83 = 887.17 : x
  2. Step 2: Convert to fraction form
    1,633.19/2,253.83 = 887.17/x
  3. Step 3: Cross multiply
    1,633.19x = 2,253.83 × 887.17
  4. Step 4: Simplify right side
    1,633.19x = 1,999,530.36
  5. Step 5: Solve for x
    x = 1,999,530.36/1,633.19
  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.