Home / 2,651.83-3,975.09-1,331.54

Finding the Fourth Proportional to 2,651.83, 3,975.09 and 1,331.54

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Solution

The fourth proportional to 2,651.83, 3,975.09 and 1,331.54 is: 1,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.83 : 3,975.09 = 1,331.54 : x
  2. Step 2: Convert to fraction form
    2,651.83/3,975.09 = 1,331.54/x
  3. Step 3: Cross multiply
    2,651.83x = 3,975.09 × 1,331.54
  4. Step 4: Simplify right side
    2,651.83x = 5,292,991.34
  5. Step 5: Solve for x
    x = 5,292,991.34/2,651.83
  6. Step 6: Final answer
    x = 1,995.98

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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.