Home / 1,633.12-2,253.73-887.09

Finding the Fourth Proportional to 1,633.12, 2,253.73 and 887.09

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Solution

The fourth proportional to 1,633.12, 2,253.73 and 887.09 is: 1,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.12 : 2,253.73 = 887.09 : x
  2. Step 2: Convert to fraction form
    1,633.12/2,253.73 = 887.09/x
  3. Step 3: Cross multiply
    1,633.12x = 2,253.73 × 887.09
  4. Step 4: Simplify right side
    1,633.12x = 1,999,264.76
  5. Step 5: Solve for x
    x = 1,999,264.76/1,633.12
  6. Step 6: Final answer
    x = 1,224.20

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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.