Home / 3,090.14-4,255.09-2,669.75

Finding the Fourth Proportional to 3,090.14, 4,255.09 and 2,669.75

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Solution

The fourth proportional to 3,090.14, 4,255.09 and 2,669.75 is: 3,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.14 : 4,255.09 = 2,669.75 : x
  2. Step 2: Convert to fraction form
    3,090.14/4,255.09 = 2,669.75/x
  3. Step 3: Cross multiply
    3,090.14x = 4,255.09 × 2,669.75
  4. Step 4: Simplify right side
    3,090.14x = 11,360,026.53
  5. Step 5: Solve for x
    x = 11,360,026.53/3,090.14
  6. Step 6: Final answer
    x = 3,676.22

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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.