Home / 3,848.15-5,772.63-1,215.72

Finding the Fourth Proportional to 3,848.15, 5,772.63 and 1,215.72

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Solution

The fourth proportional to 3,848.15, 5,772.63 and 1,215.72 is: 1,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.15 : 5,772.63 = 1,215.72 : x
  2. Step 2: Convert to fraction form
    3,848.15/5,772.63 = 1,215.72/x
  3. Step 3: Cross multiply
    3,848.15x = 5,772.63 × 1,215.72
  4. Step 4: Simplify right side
    3,848.15x = 7,017,906.30
  5. Step 5: Solve for x
    x = 7,017,906.30/3,848.15
  6. Step 6: Final answer
    x = 1,823.71

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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.