Home / 1,633.14-2,253.69-887.09

Finding the Fourth Proportional to 1,633.14, 2,253.69 and 887.09

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Solution

The fourth proportional to 1,633.14, 2,253.69 and 887.09 is: 1,224.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.14 : 2,253.69 = 887.09 : x
  2. Step 2: Convert to fraction form
    1,633.14/2,253.69 = 887.09/x
  3. Step 3: Cross multiply
    1,633.14x = 2,253.69 × 887.09
  4. Step 4: Simplify right side
    1,633.14x = 1,999,214.59
  5. Step 5: Solve for x
    x = 1,999,214.59/1,633.14
  6. Step 6: Final answer
    x = 1,224.15

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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.