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Finding the Fourth Proportional to 4,499, 6,751.98 and 3,122

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Solution

The fourth proportional to 4,499, 6,751.98 and 3,122 is: 4,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,499 : 6,751.98 = 3,122 : x
  2. Step 2: Convert to fraction form
    4,499/6,751.98 = 3,122/x
  3. Step 3: Cross multiply
    4,499x = 6,751.98 × 3,122
  4. Step 4: Simplify right side
    4,499x = 21,079,681.56
  5. Step 5: Solve for x
    x = 21,079,681.56/4,499
  6. Step 6: Final answer
    x = 4,685.41

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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.