Home / 3,116.96-4,302.48-1,939.04

Finding the Fourth Proportional to 3,116.96, 4,302.48 and 1,939.04

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Solution

The fourth proportional to 3,116.96, 4,302.48 and 1,939.04 is: 2,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.96 : 4,302.48 = 1,939.04 : x
  2. Step 2: Convert to fraction form
    3,116.96/4,302.48 = 1,939.04/x
  3. Step 3: Cross multiply
    3,116.96x = 4,302.48 × 1,939.04
  4. Step 4: Simplify right side
    3,116.96x = 8,342,680.82
  5. Step 5: Solve for x
    x = 8,342,680.82/3,116.96
  6. Step 6: Final answer
    x = 2,676.54

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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.