Home / 3,739.88-5,159.36-2,167.14

Finding the Fourth Proportional to 3,739.88, 5,159.36 and 2,167.14

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Solution

The fourth proportional to 3,739.88, 5,159.36 and 2,167.14 is: 2,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.88 : 5,159.36 = 2,167.14 : x
  2. Step 2: Convert to fraction form
    3,739.88/5,159.36 = 2,167.14/x
  3. Step 3: Cross multiply
    3,739.88x = 5,159.36 × 2,167.14
  4. Step 4: Simplify right side
    3,739.88x = 11,181,055.43
  5. Step 5: Solve for x
    x = 11,181,055.43/3,739.88
  6. Step 6: Final answer
    x = 2,989.68

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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.