Home / 4,254.48-6,380.72-1,621.44

Finding the Fourth Proportional to 4,254.48, 6,380.72 and 1,621.44

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Solution

The fourth proportional to 4,254.48, 6,380.72 and 1,621.44 is: 2,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.48 : 6,380.72 = 1,621.44 : x
  2. Step 2: Convert to fraction form
    4,254.48/6,380.72 = 1,621.44/x
  3. Step 3: Cross multiply
    4,254.48x = 6,380.72 × 1,621.44
  4. Step 4: Simplify right side
    4,254.48x = 10,345,954.64
  5. Step 5: Solve for x
    x = 10,345,954.64/4,254.48
  6. Step 6: Final answer
    x = 2,431.78

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1.5x scale

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.