Home / 4,486.72-6,729.82-2,148.38

Finding the Fourth Proportional to 4,486.72, 6,729.82 and 2,148.38

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Solution

The fourth proportional to 4,486.72, 6,729.82 and 2,148.38 is: 3,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.72 : 6,729.82 = 2,148.38 : x
  2. Step 2: Convert to fraction form
    4,486.72/6,729.82 = 2,148.38/x
  3. Step 3: Cross multiply
    4,486.72x = 6,729.82 × 2,148.38
  4. Step 4: Simplify right side
    4,486.72x = 14,458,210.69
  5. Step 5: Solve for x
    x = 14,458,210.69/4,486.72
  6. Step 6: Final answer
    x = 3,222.45

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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.