Home / 6,481.11-9,720.63-2,320.35

Finding the Fourth Proportional to 6,481.11, 9,720.63 and 2,320.35

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Solution

The fourth proportional to 6,481.11, 9,720.63 and 2,320.35 is: 3,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.11 : 9,720.63 = 2,320.35 : x
  2. Step 2: Convert to fraction form
    6,481.11/9,720.63 = 2,320.35/x
  3. Step 3: Cross multiply
    6,481.11x = 9,720.63 × 2,320.35
  4. Step 4: Simplify right side
    6,481.11x = 22,555,263.82
  5. Step 5: Solve for x
    x = 22,555,263.82/6,481.11
  6. Step 6: Final answer
    x = 3,480.15

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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.