Home / 5,422.29-8,136.92-2,135.53

Finding the Fourth Proportional to 5,422.29, 8,136.92 and 2,135.53

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Solution

The fourth proportional to 5,422.29, 8,136.92 and 2,135.53 is: 3,204.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.29 : 8,136.92 = 2,135.53 : x
  2. Step 2: Convert to fraction form
    5,422.29/8,136.92 = 2,135.53/x
  3. Step 3: Cross multiply
    5,422.29x = 8,136.92 × 2,135.53
  4. Step 4: Simplify right side
    5,422.29x = 17,376,636.77
  5. Step 5: Solve for x
    x = 17,376,636.77/5,422.29
  6. Step 6: Final answer
    x = 3,204.67

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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.