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Finding the Fourth Proportional to 6,398.84, 9,598.27 and 4,217.31

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Solution

The fourth proportional to 6,398.84, 9,598.27 and 4,217.31 is: 6,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.84 : 9,598.27 = 4,217.31 : x
  2. Step 2: Convert to fraction form
    6,398.84/9,598.27 = 4,217.31/x
  3. Step 3: Cross multiply
    6,398.84x = 9,598.27 × 4,217.31
  4. Step 4: Simplify right side
    6,398.84x = 40,478,858.97
  5. Step 5: Solve for x
    x = 40,478,858.97/6,398.84
  6. Step 6: Final answer
    x = 6,325.97

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Similar ratio
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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.