Home / 3,725.55-5,136.66-3,130.38

Finding the Fourth Proportional to 3,725.55, 5,136.66 and 3,130.38

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Solution

The fourth proportional to 3,725.55, 5,136.66 and 3,130.38 is: 4,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.55 : 5,136.66 = 3,130.38 : x
  2. Step 2: Convert to fraction form
    3,725.55/5,136.66 = 3,130.38/x
  3. Step 3: Cross multiply
    3,725.55x = 5,136.66 × 3,130.38
  4. Step 4: Simplify right side
    3,725.55x = 16,079,697.73
  5. Step 5: Solve for x
    x = 16,079,697.73/3,725.55
  6. Step 6: Final answer
    x = 4,316.06

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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.