Home / 7,720.85-11,581.00-3,275.66

Finding the Fourth Proportional to 7,720.85, 11,581.00 and 3,275.66

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Solution

The fourth proportional to 7,720.85, 11,581.00 and 3,275.66 is: 4,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.85 : 11,581.00 = 3,275.66 : x
  2. Step 2: Convert to fraction form
    7,720.85/11,581.00 = 3,275.66/x
  3. Step 3: Cross multiply
    7,720.85x = 11,581.00 × 3,275.66
  4. Step 4: Simplify right side
    7,720.85x = 37,935,352.37
  5. Step 5: Solve for x
    x = 37,935,352.37/7,720.85
  6. Step 6: Final answer
    x = 4,913.37

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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.