Home / 2,956.12-4,079.30-1,908.18

Finding the Fourth Proportional to 2,956.12, 4,079.30 and 1,908.18

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Solution

The fourth proportional to 2,956.12, 4,079.30 and 1,908.18 is: 2,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.12 : 4,079.30 = 1,908.18 : x
  2. Step 2: Convert to fraction form
    2,956.12/4,079.30 = 1,908.18/x
  3. Step 3: Cross multiply
    2,956.12x = 4,079.30 × 1,908.18
  4. Step 4: Simplify right side
    2,956.12x = 7,784,029.13
  5. Step 5: Solve for x
    x = 7,784,029.13/2,956.12
  6. Step 6: Final answer
    x = 2,633.19

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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.