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Finding the Fourth Proportional to 4,324.75, 6,491.75 and 1,860.79

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Solution

The fourth proportional to 4,324.75, 6,491.75 and 1,860.79 is: 2,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,324.75 : 6,491.75 = 1,860.79 : x
  2. Step 2: Convert to fraction form
    4,324.75/6,491.75 = 1,860.79/x
  3. Step 3: Cross multiply
    4,324.75x = 6,491.75 × 1,860.79
  4. Step 4: Simplify right side
    4,324.75x = 12,079,783.48
  5. Step 5: Solve for x
    x = 12,079,783.48/4,324.75
  6. Step 6: Final answer
    x = 2,793.17

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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.