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Finding the Fourth Proportional to 6.50, 8.98 and 4.08

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Solution

The fourth proportional to 6.50, 8.98 and 4.08 is: 5.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.50 : 8.98 = 4.08 : x
  2. Step 2: Convert to fraction form
    6.50/8.98 = 4.08/x
  3. Step 3: Cross multiply
    6.50x = 8.98 × 4.08
  4. Step 4: Simplify right side
    6.50x = 36.66
  5. Step 5: Solve for x
    x = 36.66/6.50
  6. Step 6: Final answer
    x = 5.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.