Home / 3,424.84-5,138.08-2,020.42

Finding the Fourth Proportional to 3,424.84, 5,138.08 and 2,020.42

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Solution

The fourth proportional to 3,424.84, 5,138.08 and 2,020.42 is: 3,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.84 : 5,138.08 = 2,020.42 : x
  2. Step 2: Convert to fraction form
    3,424.84/5,138.08 = 2,020.42/x
  3. Step 3: Cross multiply
    3,424.84x = 5,138.08 × 2,020.42
  4. Step 4: Simplify right side
    3,424.84x = 10,381,079.59
  5. Step 5: Solve for x
    x = 10,381,079.59/3,424.84
  6. Step 6: Final answer
    x = 3,031.11

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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.