Home / 2,869.22-3,961.48-1,926.42

Finding the Fourth Proportional to 2,869.22, 3,961.48 and 1,926.42

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Solution

The fourth proportional to 2,869.22, 3,961.48 and 1,926.42 is: 2,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.22 : 3,961.48 = 1,926.42 : x
  2. Step 2: Convert to fraction form
    2,869.22/3,961.48 = 1,926.42/x
  3. Step 3: Cross multiply
    2,869.22x = 3,961.48 × 1,926.42
  4. Step 4: Simplify right side
    2,869.22x = 7,631,474.30
  5. Step 5: Solve for x
    x = 7,631,474.30/2,869.22
  6. Step 6: Final answer
    x = 2,659.77

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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.