Home / 5,108.31-7,660.80-1,644.75

Finding the Fourth Proportional to 5,108.31, 7,660.80 and 1,644.75

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Solution

The fourth proportional to 5,108.31, 7,660.80 and 1,644.75 is: 2,466.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.31 : 7,660.80 = 1,644.75 : x
  2. Step 2: Convert to fraction form
    5,108.31/7,660.80 = 1,644.75/x
  3. Step 3: Cross multiply
    5,108.31x = 7,660.80 × 1,644.75
  4. Step 4: Simplify right side
    5,108.31x = 12,600,100.80
  5. Step 5: Solve for x
    x = 12,600,100.80/5,108.31
  6. Step 6: Final answer
    x = 2,466.59

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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.