Home / 4,080.93-5,637.37-3,929.21

Finding the Fourth Proportional to 4,080.93, 5,637.37 and 3,929.21

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Solution

The fourth proportional to 4,080.93, 5,637.37 and 3,929.21 is: 5,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.93 : 5,637.37 = 3,929.21 : x
  2. Step 2: Convert to fraction form
    4,080.93/5,637.37 = 3,929.21/x
  3. Step 3: Cross multiply
    4,080.93x = 5,637.37 × 3,929.21
  4. Step 4: Simplify right side
    4,080.93x = 22,150,412.13
  5. Step 5: Solve for x
    x = 22,150,412.13/4,080.93
  6. Step 6: Final answer
    x = 5,427.78

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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.