Home / 3,857.24-5,785.86-1,225.02

Finding the Fourth Proportional to 3,857.24, 5,785.86 and 1,225.02

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Solution

The fourth proportional to 3,857.24, 5,785.86 and 1,225.02 is: 1,837.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.24 : 5,785.86 = 1,225.02 : x
  2. Step 2: Convert to fraction form
    3,857.24/5,785.86 = 1,225.02/x
  3. Step 3: Cross multiply
    3,857.24x = 5,785.86 × 1,225.02
  4. Step 4: Simplify right side
    3,857.24x = 7,087,788.09
  5. Step 5: Solve for x
    x = 7,087,788.09/3,857.24
  6. Step 6: Final answer
    x = 1,837.53

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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.