Home / 5,136.53-7,698.40-2,669.90

Finding the Fourth Proportional to 5,136.53, 7,698.40 and 2,669.90

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Solution

The fourth proportional to 5,136.53, 7,698.40 and 2,669.90 is: 4,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.53 : 7,698.40 = 2,669.90 : x
  2. Step 2: Convert to fraction form
    5,136.53/7,698.40 = 2,669.90/x
  3. Step 3: Cross multiply
    5,136.53x = 7,698.40 × 2,669.90
  4. Step 4: Simplify right side
    5,136.53x = 20,553,912.99
  5. Step 5: Solve for x
    x = 20,553,912.99/5,136.53
  6. Step 6: Final answer
    x = 4,001.52

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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.