Home / 3,287.74-4,930.57-1,207.90

Finding the Fourth Proportional to 3,287.74, 4,930.57 and 1,207.90

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Solution

The fourth proportional to 3,287.74, 4,930.57 and 1,207.90 is: 1,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.74 : 4,930.57 = 1,207.90 : x
  2. Step 2: Convert to fraction form
    3,287.74/4,930.57 = 1,207.90/x
  3. Step 3: Cross multiply
    3,287.74x = 4,930.57 × 1,207.90
  4. Step 4: Simplify right side
    3,287.74x = 5,955,615.44
  5. Step 5: Solve for x
    x = 5,955,615.44/3,287.74
  6. Step 6: Final answer
    x = 1,811.46

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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.