Home / 2,956.10-4,079.34-1,629.78

Finding the Fourth Proportional to 2,956.10, 4,079.34 and 1,629.78

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Solution

The fourth proportional to 2,956.10, 4,079.34 and 1,629.78 is: 2,249.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.10 : 4,079.34 = 1,629.78 : x
  2. Step 2: Convert to fraction form
    2,956.10/4,079.34 = 1,629.78/x
  3. Step 3: Cross multiply
    2,956.10x = 4,079.34 × 1,629.78
  4. Step 4: Simplify right side
    2,956.10x = 6,648,426.75
  5. Step 5: Solve for x
    x = 6,648,426.75/2,956.10
  6. Step 6: Final answer
    x = 2,249.06

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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.