Home / 5,136.65-7,088.79-3,247.55

Finding the Fourth Proportional to 5,136.65, 7,088.79 and 3,247.55

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Solution

The fourth proportional to 5,136.65, 7,088.79 and 3,247.55 is: 4,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.65 : 7,088.79 = 3,247.55 : x
  2. Step 2: Convert to fraction form
    5,136.65/7,088.79 = 3,247.55/x
  3. Step 3: Cross multiply
    5,136.65x = 7,088.79 × 3,247.55
  4. Step 4: Simplify right side
    5,136.65x = 23,021,199.96
  5. Step 5: Solve for x
    x = 23,021,199.96/5,136.65
  6. Step 6: Final answer
    x = 4,481.75

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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.