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Finding the Fourth Proportional to 2,199, 3,299.17 and 900.57

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Solution

The fourth proportional to 2,199, 3,299.17 and 900.57 is: 1,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199 : 3,299.17 = 900.57 : x
  2. Step 2: Convert to fraction form
    2,199/3,299.17 = 900.57/x
  3. Step 3: Cross multiply
    2,199x = 3,299.17 × 900.57
  4. Step 4: Simplify right side
    2,199x = 2,971,133.53
  5. Step 5: Solve for x
    x = 2,971,133.53/2,199
  6. Step 6: Final answer
    x = 1,351.13

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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.