Home / 5,136.16-7,704.32-1,626.12

Finding the Fourth Proportional to 5,136.16, 7,704.32 and 1,626.12

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Solution

The fourth proportional to 5,136.16, 7,704.32 and 1,626.12 is: 2,439.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.16 : 7,704.32 = 1,626.12 : x
  2. Step 2: Convert to fraction form
    5,136.16/7,704.32 = 1,626.12/x
  3. Step 3: Cross multiply
    5,136.16x = 7,704.32 × 1,626.12
  4. Step 4: Simplify right side
    5,136.16x = 12,528,148.84
  5. Step 5: Solve for x
    x = 12,528,148.84/5,136.16
  6. Step 6: Final answer
    x = 2,439.21

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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.