Home / 3,749.43-5,175.05-2,808.12

Finding the Fourth Proportional to 3,749.43, 5,175.05 and 2,808.12

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Solution

The fourth proportional to 3,749.43, 5,175.05 and 2,808.12 is: 3,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.43 : 5,175.05 = 2,808.12 : x
  2. Step 2: Convert to fraction form
    3,749.43/5,175.05 = 2,808.12/x
  3. Step 3: Cross multiply
    3,749.43x = 5,175.05 × 2,808.12
  4. Step 4: Simplify right side
    3,749.43x = 14,532,147.37
  5. Step 5: Solve for x
    x = 14,532,147.37/3,749.43
  6. Step 6: Final answer
    x = 3,875.83

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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.