Home / 3,178.44-4,742.93-2,851.56

Finding the Fourth Proportional to 3,178.44, 4,742.93 and 2,851.56

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Solution

The fourth proportional to 3,178.44, 4,742.93 and 2,851.56 is: 4,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.44 : 4,742.93 = 2,851.56 : x
  2. Step 2: Convert to fraction form
    3,178.44/4,742.93 = 2,851.56/x
  3. Step 3: Cross multiply
    3,178.44x = 4,742.93 × 2,851.56
  4. Step 4: Simplify right side
    3,178.44x = 13,524,749.47
  5. Step 5: Solve for x
    x = 13,524,749.47/3,178.44
  6. Step 6: Final answer
    x = 4,255.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.