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Finding the Fourth Proportional to 6,238.68, 8,606.34 and 3,719.09

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Solution

The fourth proportional to 6,238.68, 8,606.34 and 3,719.09 is: 5,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.68 : 8,606.34 = 3,719.09 : x
  2. Step 2: Convert to fraction form
    6,238.68/8,606.34 = 3,719.09/x
  3. Step 3: Cross multiply
    6,238.68x = 8,606.34 × 3,719.09
  4. Step 4: Simplify right side
    6,238.68x = 32,007,710.00
  5. Step 5: Solve for x
    x = 32,007,710.00/6,238.68
  6. Step 6: Final answer
    x = 5,130.53

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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.