Home / 4,115.60-6,163.80-3,136.40

Finding the Fourth Proportional to 4,115.60, 6,163.80 and 3,136.40

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Solution

The fourth proportional to 4,115.60, 6,163.80 and 3,136.40 is: 4,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.60 : 6,163.80 = 3,136.40 : x
  2. Step 2: Convert to fraction form
    4,115.60/6,163.80 = 3,136.40/x
  3. Step 3: Cross multiply
    4,115.60x = 6,163.80 × 3,136.40
  4. Step 4: Simplify right side
    4,115.60x = 19,332,142.32
  5. Step 5: Solve for x
    x = 19,332,142.32/4,115.60
  6. Step 6: Final answer
    x = 4,697.28

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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.