Home / 3,194.70-4,398.40-2,485.68

Finding the Fourth Proportional to 3,194.70, 4,398.40 and 2,485.68

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Solution

The fourth proportional to 3,194.70, 4,398.40 and 2,485.68 is: 3,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.70 : 4,398.40 = 2,485.68 : x
  2. Step 2: Convert to fraction form
    3,194.70/4,398.40 = 2,485.68/x
  3. Step 3: Cross multiply
    3,194.70x = 4,398.40 × 2,485.68
  4. Step 4: Simplify right side
    3,194.70x = 10,933,014.91
  5. Step 5: Solve for x
    x = 10,933,014.91/3,194.70
  6. Step 6: Final answer
    x = 3,422.24

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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.