Home / 3,723.64-5,137.52-2,661.72

Finding the Fourth Proportional to 3,723.64, 5,137.52 and 2,661.72

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Solution

The fourth proportional to 3,723.64, 5,137.52 and 2,661.72 is: 3,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.64 : 5,137.52 = 2,661.72 : x
  2. Step 2: Convert to fraction form
    3,723.64/5,137.52 = 2,661.72/x
  3. Step 3: Cross multiply
    3,723.64x = 5,137.52 × 2,661.72
  4. Step 4: Simplify right side
    3,723.64x = 13,674,639.73
  5. Step 5: Solve for x
    x = 13,674,639.73/3,723.64
  6. Step 6: Final answer
    x = 3,672.39

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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.