Home / 2,956.15-4,079.51-1,629.90

Finding the Fourth Proportional to 2,956.15, 4,079.51 and 1,629.90

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Solution

The fourth proportional to 2,956.15, 4,079.51 and 1,629.90 is: 2,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.15 : 4,079.51 = 1,629.90 : x
  2. Step 2: Convert to fraction form
    2,956.15/4,079.51 = 1,629.90/x
  3. Step 3: Cross multiply
    2,956.15x = 4,079.51 × 1,629.90
  4. Step 4: Simplify right side
    2,956.15x = 6,649,193.35
  5. Step 5: Solve for x
    x = 6,649,193.35/2,956.15
  6. Step 6: Final answer
    x = 2,249.28

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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.