Home / 2,749.28-3,795.62-1,806.71

Finding the Fourth Proportional to 2,749.28, 3,795.62 and 1,806.71

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Solution

The fourth proportional to 2,749.28, 3,795.62 and 1,806.71 is: 2,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.28 : 3,795.62 = 1,806.71 : x
  2. Step 2: Convert to fraction form
    2,749.28/3,795.62 = 1,806.71/x
  3. Step 3: Cross multiply
    2,749.28x = 3,795.62 × 1,806.71
  4. Step 4: Simplify right side
    2,749.28x = 6,857,556.60
  5. Step 5: Solve for x
    x = 6,857,556.60/2,749.28
  6. Step 6: Final answer
    x = 2,494.31

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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.