Home / 3,621.14-5,431.30-2,458.61

Finding the Fourth Proportional to 3,621.14, 5,431.30 and 2,458.61

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Solution

The fourth proportional to 3,621.14, 5,431.30 and 2,458.61 is: 3,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.14 : 5,431.30 = 2,458.61 : x
  2. Step 2: Convert to fraction form
    3,621.14/5,431.30 = 2,458.61/x
  3. Step 3: Cross multiply
    3,621.14x = 5,431.30 × 2,458.61
  4. Step 4: Simplify right side
    3,621.14x = 13,353,415.19
  5. Step 5: Solve for x
    x = 13,353,415.19/3,621.14
  6. Step 6: Final answer
    x = 3,687.63

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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.