Home / 6,881.48-10,315.62-2,198.90

Finding the Fourth Proportional to 6,881.48, 10,315.62 and 2,198.90

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Solution

The fourth proportional to 6,881.48, 10,315.62 and 2,198.90 is: 3,296.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.48 : 10,315.62 = 2,198.90 : x
  2. Step 2: Convert to fraction form
    6,881.48/10,315.62 = 2,198.90/x
  3. Step 3: Cross multiply
    6,881.48x = 10,315.62 × 2,198.90
  4. Step 4: Simplify right side
    6,881.48x = 22,683,016.82
  5. Step 5: Solve for x
    x = 22,683,016.82/6,881.48
  6. Step 6: Final answer
    x = 3,296.24

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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.