Home / 3,119.90-4,305.96-2,372.66

Finding the Fourth Proportional to 3,119.90, 4,305.96 and 2,372.66

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Solution

The fourth proportional to 3,119.90, 4,305.96 and 2,372.66 is: 3,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.90 : 4,305.96 = 2,372.66 : x
  2. Step 2: Convert to fraction form
    3,119.90/4,305.96 = 2,372.66/x
  3. Step 3: Cross multiply
    3,119.90x = 4,305.96 × 2,372.66
  4. Step 4: Simplify right side
    3,119.90x = 10,216,579.05
  5. Step 5: Solve for x
    x = 10,216,579.05/3,119.90
  6. Step 6: Final answer
    x = 3,274.65

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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.