Home / 3,103.38-4,646.78-2,611.30

Finding the Fourth Proportional to 3,103.38, 4,646.78 and 2,611.30

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Solution

The fourth proportional to 3,103.38, 4,646.78 and 2,611.30 is: 3,909.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.38 : 4,646.78 = 2,611.30 : x
  2. Step 2: Convert to fraction form
    3,103.38/4,646.78 = 2,611.30/x
  3. Step 3: Cross multiply
    3,103.38x = 4,646.78 × 2,611.30
  4. Step 4: Simplify right side
    3,103.38x = 12,134,136.61
  5. Step 5: Solve for x
    x = 12,134,136.61/3,103.38
  6. Step 6: Final answer
    x = 3,909.97

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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.