Home / 3,845.95-5,307.73-2,231.42

Finding the Fourth Proportional to 3,845.95, 5,307.73 and 2,231.42

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Solution

The fourth proportional to 3,845.95, 5,307.73 and 2,231.42 is: 3,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.95 : 5,307.73 = 2,231.42 : x
  2. Step 2: Convert to fraction form
    3,845.95/5,307.73 = 2,231.42/x
  3. Step 3: Cross multiply
    3,845.95x = 5,307.73 × 2,231.42
  4. Step 4: Simplify right side
    3,845.95x = 11,843,742.76
  5. Step 5: Solve for x
    x = 11,843,742.76/3,845.95
  6. Step 6: Final answer
    x = 3,079.54

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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.