Home / 5,091.42-7,634.74-1,972.89

Finding the Fourth Proportional to 5,091.42, 7,634.74 and 1,972.89

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Solution

The fourth proportional to 5,091.42, 7,634.74 and 1,972.89 is: 2,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.42 : 7,634.74 = 1,972.89 : x
  2. Step 2: Convert to fraction form
    5,091.42/7,634.74 = 1,972.89/x
  3. Step 3: Cross multiply
    5,091.42x = 7,634.74 × 1,972.89
  4. Step 4: Simplify right side
    5,091.42x = 15,062,500.97
  5. Step 5: Solve for x
    x = 15,062,500.97/5,091.42
  6. Step 6: Final answer
    x = 2,958.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.