Home / 5,091.93-7,637.76-2,131.97

Finding the Fourth Proportional to 5,091.93, 7,637.76 and 2,131.97

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Solution

The fourth proportional to 5,091.93, 7,637.76 and 2,131.97 is: 3,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.93 : 7,637.76 = 2,131.97 : x
  2. Step 2: Convert to fraction form
    5,091.93/7,637.76 = 2,131.97/x
  3. Step 3: Cross multiply
    5,091.93x = 7,637.76 × 2,131.97
  4. Step 4: Simplify right side
    5,091.93x = 16,283,437.00
  5. Step 5: Solve for x
    x = 16,283,437.00/5,091.93
  6. Step 6: Final answer
    x = 3,197.89

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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.