Home / 3,179.84-4,388.08-1,853.60

Finding the Fourth Proportional to 3,179.84, 4,388.08 and 1,853.60

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Solution

The fourth proportional to 3,179.84, 4,388.08 and 1,853.60 is: 2,557.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.84 : 4,388.08 = 1,853.60 : x
  2. Step 2: Convert to fraction form
    3,179.84/4,388.08 = 1,853.60/x
  3. Step 3: Cross multiply
    3,179.84x = 4,388.08 × 1,853.60
  4. Step 4: Simplify right side
    3,179.84x = 8,133,745.09
  5. Step 5: Solve for x
    x = 8,133,745.09/3,179.84
  6. Step 6: Final answer
    x = 2,557.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.