Home / 7,957.89-11,938.30-2,621.37

Finding the Fourth Proportional to 7,957.89, 11,938.30 and 2,621.37

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Solution

The fourth proportional to 7,957.89, 11,938.30 and 2,621.37 is: 3,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.89 : 11,938.30 = 2,621.37 : x
  2. Step 2: Convert to fraction form
    7,957.89/11,938.30 = 2,621.37/x
  3. Step 3: Cross multiply
    7,957.89x = 11,938.30 × 2,621.37
  4. Step 4: Simplify right side
    7,957.89x = 31,294,635.23
  5. Step 5: Solve for x
    x = 31,294,635.23/7,957.89
  6. Step 6: Final answer
    x = 3,932.53

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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.