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Finding the Fourth Proportional to 6,493.99, 8,961.65 and 3,509.81

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Solution

The fourth proportional to 6,493.99, 8,961.65 and 3,509.81 is: 4,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,493.99 : 8,961.65 = 3,509.81 : x
  2. Step 2: Convert to fraction form
    6,493.99/8,961.65 = 3,509.81/x
  3. Step 3: Cross multiply
    6,493.99x = 8,961.65 × 3,509.81
  4. Step 4: Simplify right side
    6,493.99x = 31,453,709.64
  5. Step 5: Solve for x
    x = 31,453,709.64/6,493.99
  6. Step 6: Final answer
    x = 4,843.51

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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.