Home / 2,508.07-3,760.74-1,991.39

Finding the Fourth Proportional to 2,508.07, 3,760.74 and 1,991.39

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Solution

The fourth proportional to 2,508.07, 3,760.74 and 1,991.39 is: 2,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.07 : 3,760.74 = 1,991.39 : x
  2. Step 2: Convert to fraction form
    2,508.07/3,760.74 = 1,991.39/x
  3. Step 3: Cross multiply
    2,508.07x = 3,760.74 × 1,991.39
  4. Step 4: Simplify right side
    2,508.07x = 7,489,090.07
  5. Step 5: Solve for x
    x = 7,489,090.07/2,508.07
  6. Step 6: Final answer
    x = 2,986.00

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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.