Home / 6,218.81-8,579.24-4,091.61

Finding the Fourth Proportional to 6,218.81, 8,579.24 and 4,091.61

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Solution

The fourth proportional to 6,218.81, 8,579.24 and 4,091.61 is: 5,644.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.81 : 8,579.24 = 4,091.61 : x
  2. Step 2: Convert to fraction form
    6,218.81/8,579.24 = 4,091.61/x
  3. Step 3: Cross multiply
    6,218.81x = 8,579.24 × 4,091.61
  4. Step 4: Simplify right side
    6,218.81x = 35,102,840.82
  5. Step 5: Solve for x
    x = 35,102,840.82/6,218.81
  6. Step 6: Final answer
    x = 5,644.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.