Home / 3,345.40-5,019.92-2,113.39

Finding the Fourth Proportional to 3,345.40, 5,019.92 and 2,113.39

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Solution

The fourth proportional to 3,345.40, 5,019.92 and 2,113.39 is: 3,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.40 : 5,019.92 = 2,113.39 : x
  2. Step 2: Convert to fraction form
    3,345.40/5,019.92 = 2,113.39/x
  3. Step 3: Cross multiply
    3,345.40x = 5,019.92 × 2,113.39
  4. Step 4: Simplify right side
    3,345.40x = 10,609,048.73
  5. Step 5: Solve for x
    x = 10,609,048.73/3,345.40
  6. Step 6: Final answer
    x = 3,171.23

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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.