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Finding the Fourth Proportional to 6,238.76, 9,361.13 and 3,898.13

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Solution

The fourth proportional to 6,238.76, 9,361.13 and 3,898.13 is: 5,849.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.76 : 9,361.13 = 3,898.13 : x
  2. Step 2: Convert to fraction form
    6,238.76/9,361.13 = 3,898.13/x
  3. Step 3: Cross multiply
    6,238.76x = 9,361.13 × 3,898.13
  4. Step 4: Simplify right side
    6,238.76x = 36,490,835.39
  5. Step 5: Solve for x
    x = 36,490,835.39/6,238.76
  6. Step 6: Final answer
    x = 5,849.06

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1.5x scale

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.