Home / 4,987.28-6,881.92-2,749.03

Finding the Fourth Proportional to 4,987.28, 6,881.92 and 2,749.03

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Solution

The fourth proportional to 4,987.28, 6,881.92 and 2,749.03 is: 3,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.28 : 6,881.92 = 2,749.03 : x
  2. Step 2: Convert to fraction form
    4,987.28/6,881.92 = 2,749.03/x
  3. Step 3: Cross multiply
    4,987.28x = 6,881.92 × 2,749.03
  4. Step 4: Simplify right side
    4,987.28x = 18,918,604.54
  5. Step 5: Solve for x
    x = 18,918,604.54/4,987.28
  6. Step 6: Final answer
    x = 3,793.37

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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.