Home / 3,785.09-5,679.27-1,321.67

Finding the Fourth Proportional to 3,785.09, 5,679.27 and 1,321.67

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Solution

The fourth proportional to 3,785.09, 5,679.27 and 1,321.67 is: 1,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.09 : 5,679.27 = 1,321.67 : x
  2. Step 2: Convert to fraction form
    3,785.09/5,679.27 = 1,321.67/x
  3. Step 3: Cross multiply
    3,785.09x = 5,679.27 × 1,321.67
  4. Step 4: Simplify right side
    3,785.09x = 7,506,092.38
  5. Step 5: Solve for x
    x = 7,506,092.38/3,785.09
  6. Step 6: Final answer
    x = 1,983.07

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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.