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Finding the Fourth Proportional to 887.58, 1,338.12 and 880.26

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Solution

The fourth proportional to 887.58, 1,338.12 and 880.26 is: 1,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.58 : 1,338.12 = 880.26 : x
  2. Step 2: Convert to fraction form
    887.58/1,338.12 = 880.26/x
  3. Step 3: Cross multiply
    887.58x = 1,338.12 × 880.26
  4. Step 4: Simplify right side
    887.58x = 1,177,893.51
  5. Step 5: Solve for x
    x = 1,177,893.51/887.58
  6. Step 6: Final answer
    x = 1,327.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.