Home / 3,275.55-4,911.17-1,325.79

Finding the Fourth Proportional to 3,275.55, 4,911.17 and 1,325.79

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Solution

The fourth proportional to 3,275.55, 4,911.17 and 1,325.79 is: 1,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.55 : 4,911.17 = 1,325.79 : x
  2. Step 2: Convert to fraction form
    3,275.55/4,911.17 = 1,325.79/x
  3. Step 3: Cross multiply
    3,275.55x = 4,911.17 × 1,325.79
  4. Step 4: Simplify right side
    3,275.55x = 6,511,173.45
  5. Step 5: Solve for x
    x = 6,511,173.45/3,275.55
  6. Step 6: Final answer
    x = 1,987.81

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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.