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Finding the Fourth Proportional to 4.32, 6.49 and 2.99

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Solution

The fourth proportional to 4.32, 6.49 and 2.99 is: 4.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.32 : 6.49 = 2.99 : x
  2. Step 2: Convert to fraction form
    4.32/6.49 = 2.99/x
  3. Step 3: Cross multiply
    4.32x = 6.49 × 2.99
  4. Step 4: Simplify right side
    4.32x = 19.41
  5. Step 5: Solve for x
    x = 19.41/4.32
  6. Step 6: Final answer
    x = 4.49

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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.