Home / 3,812.10-5,254.88-2,749.38

Finding the Fourth Proportional to 3,812.10, 5,254.88 and 2,749.38

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Solution

The fourth proportional to 3,812.10, 5,254.88 and 2,749.38 is: 3,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.10 : 5,254.88 = 2,749.38 : x
  2. Step 2: Convert to fraction form
    3,812.10/5,254.88 = 2,749.38/x
  3. Step 3: Cross multiply
    3,812.10x = 5,254.88 × 2,749.38
  4. Step 4: Simplify right side
    3,812.10x = 14,447,648.23
  5. Step 5: Solve for x
    x = 14,447,648.23/3,812.10
  6. Step 6: Final answer
    x = 3,789.94

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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.