Home / 4,138.21-6,206.50-1,215.73

Finding the Fourth Proportional to 4,138.21, 6,206.50 and 1,215.73

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Solution

The fourth proportional to 4,138.21, 6,206.50 and 1,215.73 is: 1,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.21 : 6,206.50 = 1,215.73 : x
  2. Step 2: Convert to fraction form
    4,138.21/6,206.50 = 1,215.73/x
  3. Step 3: Cross multiply
    4,138.21x = 6,206.50 × 1,215.73
  4. Step 4: Simplify right side
    4,138.21x = 7,545,428.25
  5. Step 5: Solve for x
    x = 7,545,428.25/4,138.21
  6. Step 6: Final answer
    x = 1,823.36

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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.