Home / 4,136.40-6,187.32-3,311.28

Finding the Fourth Proportional to 4,136.40, 6,187.32 and 3,311.28

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Solution

The fourth proportional to 4,136.40, 6,187.32 and 3,311.28 is: 4,953.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.40 : 6,187.32 = 3,311.28 : x
  2. Step 2: Convert to fraction form
    4,136.40/6,187.32 = 3,311.28/x
  3. Step 3: Cross multiply
    4,136.40x = 6,187.32 × 3,311.28
  4. Step 4: Simplify right side
    4,136.40x = 20,487,948.97
  5. Step 5: Solve for x
    x = 20,487,948.97/4,136.40
  6. Step 6: Final answer
    x = 4,953.09

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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.