Home / 5,136.72-7,698.51-2,212.08

Finding the Fourth Proportional to 5,136.72, 7,698.51 and 2,212.08

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Solution

The fourth proportional to 5,136.72, 7,698.51 and 2,212.08 is: 3,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.72 : 7,698.51 = 2,212.08 : x
  2. Step 2: Convert to fraction form
    5,136.72/7,698.51 = 2,212.08/x
  3. Step 3: Cross multiply
    5,136.72x = 7,698.51 × 2,212.08
  4. Step 4: Simplify right side
    5,136.72x = 17,029,720.00
  5. Step 5: Solve for x
    x = 17,029,720.00/5,136.72
  6. Step 6: Final answer
    x = 3,315.29

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1.5x scale

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.