Home / 3,182.09-4,772.89-1,621.12

Finding the Fourth Proportional to 3,182.09, 4,772.89 and 1,621.12

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Solution

The fourth proportional to 3,182.09, 4,772.89 and 1,621.12 is: 2,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.09 : 4,772.89 = 1,621.12 : x
  2. Step 2: Convert to fraction form
    3,182.09/4,772.89 = 1,621.12/x
  3. Step 3: Cross multiply
    3,182.09x = 4,772.89 × 1,621.12
  4. Step 4: Simplify right side
    3,182.09x = 7,737,427.44
  5. Step 5: Solve for x
    x = 7,737,427.44/3,182.09
  6. Step 6: Final answer
    x = 2,431.56

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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.