Home / 6,464.00-8,921.75-4,105.69

Finding the Fourth Proportional to 6,464.00, 8,921.75 and 4,105.69

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Solution

The fourth proportional to 6,464.00, 8,921.75 and 4,105.69 is: 5,666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.00 : 8,921.75 = 4,105.69 : x
  2. Step 2: Convert to fraction form
    6,464.00/8,921.75 = 4,105.69/x
  3. Step 3: Cross multiply
    6,464.00x = 8,921.75 × 4,105.69
  4. Step 4: Simplify right side
    6,464.00x = 36,629,896.92
  5. Step 5: Solve for x
    x = 36,629,896.92/6,464.00
  6. Step 6: Final answer
    x = 5,666.75

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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.