Home / 4,254.21-6,380.37-1,621.17

Finding the Fourth Proportional to 4,254.21, 6,380.37 and 1,621.17

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Solution

The fourth proportional to 4,254.21, 6,380.37 and 1,621.17 is: 2,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.21 : 6,380.37 = 1,621.17 : x
  2. Step 2: Convert to fraction form
    4,254.21/6,380.37 = 1,621.17/x
  3. Step 3: Cross multiply
    4,254.21x = 6,380.37 × 1,621.17
  4. Step 4: Simplify right side
    4,254.21x = 10,343,664.43
  5. Step 5: Solve for x
    x = 10,343,664.43/4,254.21
  6. Step 6: Final answer
    x = 2,431.39

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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.