Home / 3,723.64-5,139.26-2,152.65

Finding the Fourth Proportional to 3,723.64, 5,139.26 and 2,152.65

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Solution

The fourth proportional to 3,723.64, 5,139.26 and 2,152.65 is: 2,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.64 : 5,139.26 = 2,152.65 : x
  2. Step 2: Convert to fraction form
    3,723.64/5,139.26 = 2,152.65/x
  3. Step 3: Cross multiply
    3,723.64x = 5,139.26 × 2,152.65
  4. Step 4: Simplify right side
    3,723.64x = 11,063,028.04
  5. Step 5: Solve for x
    x = 11,063,028.04/3,723.64
  6. Step 6: Final answer
    x = 2,971.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.