Home / 3,837.56-5,752.60-1,238.72

Finding the Fourth Proportional to 3,837.56, 5,752.60 and 1,238.72

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Solution

The fourth proportional to 3,837.56, 5,752.60 and 1,238.72 is: 1,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.56 : 5,752.60 = 1,238.72 : x
  2. Step 2: Convert to fraction form
    3,837.56/5,752.60 = 1,238.72/x
  3. Step 3: Cross multiply
    3,837.56x = 5,752.60 × 1,238.72
  4. Step 4: Simplify right side
    3,837.56x = 7,125,860.67
  5. Step 5: Solve for x
    x = 7,125,860.67/3,837.56
  6. Step 6: Final answer
    x = 1,856.87

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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.