Home / 2,974.26-4,105.80-1,926.84

Finding the Fourth Proportional to 2,974.26, 4,105.80 and 1,926.84

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Solution

The fourth proportional to 2,974.26, 4,105.80 and 1,926.84 is: 2,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.26 : 4,105.80 = 1,926.84 : x
  2. Step 2: Convert to fraction form
    2,974.26/4,105.80 = 1,926.84/x
  3. Step 3: Cross multiply
    2,974.26x = 4,105.80 × 1,926.84
  4. Step 4: Simplify right side
    2,974.26x = 7,911,219.67
  5. Step 5: Solve for x
    x = 7,911,219.67/2,974.26
  6. Step 6: Final answer
    x = 2,659.90

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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.