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Finding the Fourth Proportional to 2.42, 3.33 and 2.19

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Solution

The fourth proportional to 2.42, 3.33 and 2.19 is: 3.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.42 : 3.33 = 2.19 : x
  2. Step 2: Convert to fraction form
    2.42/3.33 = 2.19/x
  3. Step 3: Cross multiply
    2.42x = 3.33 × 2.19
  4. Step 4: Simplify right side
    2.42x = 7.29
  5. Step 5: Solve for x
    x = 7.29/2.42
  6. Step 6: Final answer
    x = 3.01

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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.