Home / 6,481.90-9,720.81-2,098.45

Finding the Fourth Proportional to 6,481.90, 9,720.81 and 2,098.45

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Solution

The fourth proportional to 6,481.90, 9,720.81 and 2,098.45 is: 3,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.90 : 9,720.81 = 2,098.45 : x
  2. Step 2: Convert to fraction form
    6,481.90/9,720.81 = 2,098.45/x
  3. Step 3: Cross multiply
    6,481.90x = 9,720.81 × 2,098.45
  4. Step 4: Simplify right side
    6,481.90x = 20,398,633.74
  5. Step 5: Solve for x
    x = 20,398,633.74/6,481.90
  6. Step 6: Final answer
    x = 3,147.01

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1.5x scale

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.