Home / 3,388.60-4,675.89-1,896.31

Finding the Fourth Proportional to 3,388.60, 4,675.89 and 1,896.31

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Solution

The fourth proportional to 3,388.60, 4,675.89 and 1,896.31 is: 2,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.60 : 4,675.89 = 1,896.31 : x
  2. Step 2: Convert to fraction form
    3,388.60/4,675.89 = 1,896.31/x
  3. Step 3: Cross multiply
    3,388.60x = 4,675.89 × 1,896.31
  4. Step 4: Simplify right side
    3,388.60x = 8,866,936.97
  5. Step 5: Solve for x
    x = 8,866,936.97/3,388.60
  6. Step 6: Final answer
    x = 2,616.70

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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.