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Finding the Fourth Proportional to 2,400, 3,600.72 and 1,102.32

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Solution

The fourth proportional to 2,400, 3,600.72 and 1,102.32 is: 1,653.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400 : 3,600.72 = 1,102.32 : x
  2. Step 2: Convert to fraction form
    2,400/3,600.72 = 1,102.32/x
  3. Step 3: Cross multiply
    2,400x = 3,600.72 × 1,102.32
  4. Step 4: Simplify right side
    2,400x = 3,969,145.67
  5. Step 5: Solve for x
    x = 3,969,145.67/2,400
  6. Step 6: Final answer
    x = 1,653.81

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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.