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Finding the Fourth Proportional to 6,398.95, 9,598.83 and 2,238.79

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Solution

The fourth proportional to 6,398.95, 9,598.83 and 2,238.79 is: 3,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.95 : 9,598.83 = 2,238.79 : x
  2. Step 2: Convert to fraction form
    6,398.95/9,598.83 = 2,238.79/x
  3. Step 3: Cross multiply
    6,398.95x = 9,598.83 × 2,238.79
  4. Step 4: Simplify right side
    6,398.95x = 21,489,764.62
  5. Step 5: Solve for x
    x = 21,489,764.62/6,398.95
  6. Step 6: Final answer
    x = 3,358.33

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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.