Home / 4,090.12-5,637.78-2,761.51

Finding the Fourth Proportional to 4,090.12, 5,637.78 and 2,761.51

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Solution

The fourth proportional to 4,090.12, 5,637.78 and 2,761.51 is: 3,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.12 : 5,637.78 = 2,761.51 : x
  2. Step 2: Convert to fraction form
    4,090.12/5,637.78 = 2,761.51/x
  3. Step 3: Cross multiply
    4,090.12x = 5,637.78 × 2,761.51
  4. Step 4: Simplify right side
    4,090.12x = 15,568,785.85
  5. Step 5: Solve for x
    x = 15,568,785.85/4,090.12
  6. Step 6: Final answer
    x = 3,806.44

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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.