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Finding the Fourth Proportional to 2,420.88, 3,631.52 and 960.04

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Solution

The fourth proportional to 2,420.88, 3,631.52 and 960.04 is: 1,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.88 : 3,631.52 = 960.04 : x
  2. Step 2: Convert to fraction form
    2,420.88/3,631.52 = 960.04/x
  3. Step 3: Cross multiply
    2,420.88x = 3,631.52 × 960.04
  4. Step 4: Simplify right side
    2,420.88x = 3,486,404.46
  5. Step 5: Solve for x
    x = 3,486,404.46/2,420.88
  6. Step 6: Final answer
    x = 1,440.14

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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.