Home / 3,119.06-4,304.41-1,939.50

Finding the Fourth Proportional to 3,119.06, 4,304.41 and 1,939.50

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Solution

The fourth proportional to 3,119.06, 4,304.41 and 1,939.50 is: 2,676.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.06 : 4,304.41 = 1,939.50 : x
  2. Step 2: Convert to fraction form
    3,119.06/4,304.41 = 1,939.50/x
  3. Step 3: Cross multiply
    3,119.06x = 4,304.41 × 1,939.50
  4. Step 4: Simplify right side
    3,119.06x = 8,348,398.35
  5. Step 5: Solve for x
    x = 8,348,398.35/3,119.06
  6. Step 6: Final answer
    x = 2,676.57

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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.