Home / 3,930.93-5,424.67-2,162.53

Finding the Fourth Proportional to 3,930.93, 5,424.67 and 2,162.53

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Solution

The fourth proportional to 3,930.93, 5,424.67 and 2,162.53 is: 2,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.93 : 5,424.67 = 2,162.53 : x
  2. Step 2: Convert to fraction form
    3,930.93/5,424.67 = 2,162.53/x
  3. Step 3: Cross multiply
    3,930.93x = 5,424.67 × 2,162.53
  4. Step 4: Simplify right side
    3,930.93x = 11,731,011.62
  5. Step 5: Solve for x
    x = 11,731,011.62/3,930.93
  6. Step 6: Final answer
    x = 2,984.28

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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.