Home / 3,811.21-5,259.51-2,239.33

Finding the Fourth Proportional to 3,811.21, 5,259.51 and 2,239.33

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Solution

The fourth proportional to 3,811.21, 5,259.51 and 2,239.33 is: 3,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.21 : 5,259.51 = 2,239.33 : x
  2. Step 2: Convert to fraction form
    3,811.21/5,259.51 = 2,239.33/x
  3. Step 3: Cross multiply
    3,811.21x = 5,259.51 × 2,239.33
  4. Step 4: Simplify right side
    3,811.21x = 11,777,778.53
  5. Step 5: Solve for x
    x = 11,777,778.53/3,811.21
  6. Step 6: Final answer
    x = 3,090.30

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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.