Home / 5,136.90-7,089.14-3,247.80

Finding the Fourth Proportional to 5,136.90, 7,089.14 and 3,247.80

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Solution

The fourth proportional to 5,136.90, 7,089.14 and 3,247.80 is: 4,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.90 : 7,089.14 = 3,247.80 : x
  2. Step 2: Convert to fraction form
    5,136.90/7,089.14 = 3,247.80/x
  3. Step 3: Cross multiply
    5,136.90x = 7,089.14 × 3,247.80
  4. Step 4: Simplify right side
    5,136.90x = 23,024,092.65
  5. Step 5: Solve for x
    x = 23,024,092.65/5,136.90
  6. Step 6: Final answer
    x = 4,482.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.