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Finding the Fourth Proportional to 6,124.60, 9,187.20 and 3,208.60

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Solution

The fourth proportional to 6,124.60, 9,187.20 and 3,208.60 is: 4,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,124.60 : 9,187.20 = 3,208.60 : x
  2. Step 2: Convert to fraction form
    6,124.60/9,187.20 = 3,208.60/x
  3. Step 3: Cross multiply
    6,124.60x = 9,187.20 × 3,208.60
  4. Step 4: Simplify right side
    6,124.60x = 29,478,049.92
  5. Step 5: Solve for x
    x = 29,478,049.92/6,124.60
  6. Step 6: Final answer
    x = 4,813.06

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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.