Home / 3,219.88-4,827.09-1,273.45

Finding the Fourth Proportional to 3,219.88, 4,827.09 and 1,273.45

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Solution

The fourth proportional to 3,219.88, 4,827.09 and 1,273.45 is: 1,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.88 : 4,827.09 = 1,273.45 : x
  2. Step 2: Convert to fraction form
    3,219.88/4,827.09 = 1,273.45/x
  3. Step 3: Cross multiply
    3,219.88x = 4,827.09 × 1,273.45
  4. Step 4: Simplify right side
    3,219.88x = 6,147,057.76
  5. Step 5: Solve for x
    x = 6,147,057.76/3,219.88
  6. Step 6: Final answer
    x = 1,909.10

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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.