Home / 5,188.16-7,777.92-2,108

Finding the Fourth Proportional to 5,188.16, 7,777.92 and 2,108

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Solution

The fourth proportional to 5,188.16, 7,777.92 and 2,108 is: 3,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.16 : 7,777.92 = 2,108 : x
  2. Step 2: Convert to fraction form
    5,188.16/7,777.92 = 2,108/x
  3. Step 3: Cross multiply
    5,188.16x = 7,777.92 × 2,108
  4. Step 4: Simplify right side
    5,188.16x = 16,395,855.36
  5. Step 5: Solve for x
    x = 16,395,855.36/5,188.16
  6. Step 6: Final answer
    x = 3,160.24

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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.