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Finding the Fourth Proportional to 2,440.93, 3,660.49 and 774.86

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Solution

The fourth proportional to 2,440.93, 3,660.49 and 774.86 is: 1,162.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.93 : 3,660.49 = 774.86 : x
  2. Step 2: Convert to fraction form
    2,440.93/3,660.49 = 774.86/x
  3. Step 3: Cross multiply
    2,440.93x = 3,660.49 × 774.86
  4. Step 4: Simplify right side
    2,440.93x = 2,836,367.28
  5. Step 5: Solve for x
    x = 2,836,367.28/2,440.93
  6. Step 6: Final answer
    x = 1,162.00

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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.