Home / 4,251.54-6,380.43-2,790.18

Finding the Fourth Proportional to 4,251.54, 6,380.43 and 2,790.18

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Solution

The fourth proportional to 4,251.54, 6,380.43 and 2,790.18 is: 4,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.54 : 6,380.43 = 2,790.18 : x
  2. Step 2: Convert to fraction form
    4,251.54/6,380.43 = 2,790.18/x
  3. Step 3: Cross multiply
    4,251.54x = 6,380.43 × 2,790.18
  4. Step 4: Simplify right side
    4,251.54x = 17,802,548.18
  5. Step 5: Solve for x
    x = 17,802,548.18/4,251.54
  6. Step 6: Final answer
    x = 4,187.32

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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.