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Finding the Fourth Proportional to 3,486.14, 5,228.76 and 888.92

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Solution

The fourth proportional to 3,486.14, 5,228.76 and 888.92 is: 1,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.14 : 5,228.76 = 888.92 : x
  2. Step 2: Convert to fraction form
    3,486.14/5,228.76 = 888.92/x
  3. Step 3: Cross multiply
    3,486.14x = 5,228.76 × 888.92
  4. Step 4: Simplify right side
    3,486.14x = 4,647,949.34
  5. Step 5: Solve for x
    x = 4,647,949.34/3,486.14
  6. Step 6: Final answer
    x = 1,333.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.