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Finding the Fourth Proportional to 2,169, 3,253.50 and 630.04

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Solution

The fourth proportional to 2,169, 3,253.50 and 630.04 is: 945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169 : 3,253.50 = 630.04 : x
  2. Step 2: Convert to fraction form
    2,169/3,253.50 = 630.04/x
  3. Step 3: Cross multiply
    2,169x = 3,253.50 × 630.04
  4. Step 4: Simplify right side
    2,169x = 2,049,835.14
  5. Step 5: Solve for x
    x = 2,049,835.14/2,169
  6. Step 6: Final answer
    x = 945.06

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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.