Home / 7,727.20-11,601.60-4,811.20

Finding the Fourth Proportional to 7,727.20, 11,601.60 and 4,811.20

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Solution

The fourth proportional to 7,727.20, 11,601.60 and 4,811.20 is: 7,223.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.20 : 11,601.60 = 4,811.20 : x
  2. Step 2: Convert to fraction form
    7,727.20/11,601.60 = 4,811.20/x
  3. Step 3: Cross multiply
    7,727.20x = 11,601.60 × 4,811.20
  4. Step 4: Simplify right side
    7,727.20x = 55,817,617.92
  5. Step 5: Solve for x
    x = 55,817,617.92/7,727.20
  6. Step 6: Final answer
    x = 7,223.52

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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.