Home / 5,136.60-7,690.22-3,401.72

Finding the Fourth Proportional to 5,136.60, 7,690.22 and 3,401.72

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Solution

The fourth proportional to 5,136.60, 7,690.22 and 3,401.72 is: 5,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.60 : 7,690.22 = 3,401.72 : x
  2. Step 2: Convert to fraction form
    5,136.60/7,690.22 = 3,401.72/x
  3. Step 3: Cross multiply
    5,136.60x = 7,690.22 × 3,401.72
  4. Step 4: Simplify right side
    5,136.60x = 26,159,975.18
  5. Step 5: Solve for x
    x = 26,159,975.18/5,136.60
  6. Step 6: Final answer
    x = 5,092.86

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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.