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Finding the Fourth Proportional to 2,201.88, 3,302.82 and 903.45

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Solution

The fourth proportional to 2,201.88, 3,302.82 and 903.45 is: 1,355.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.88 : 3,302.82 = 903.45 : x
  2. Step 2: Convert to fraction form
    2,201.88/3,302.82 = 903.45/x
  3. Step 3: Cross multiply
    2,201.88x = 3,302.82 × 903.45
  4. Step 4: Simplify right side
    2,201.88x = 2,983,932.73
  5. Step 5: Solve for x
    x = 2,983,932.73/2,201.88
  6. Step 6: Final answer
    x = 1,355.18

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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.