Home / 5,176.44-7,143.53-2,818.67

Finding the Fourth Proportional to 5,176.44, 7,143.53 and 2,818.67

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Solution

The fourth proportional to 5,176.44, 7,143.53 and 2,818.67 is: 3,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.44 : 7,143.53 = 2,818.67 : x
  2. Step 2: Convert to fraction form
    5,176.44/7,143.53 = 2,818.67/x
  3. Step 3: Cross multiply
    5,176.44x = 7,143.53 × 2,818.67
  4. Step 4: Simplify right side
    5,176.44x = 20,135,203.89
  5. Step 5: Solve for x
    x = 20,135,203.89/5,176.44
  6. Step 6: Final answer
    x = 3,889.78

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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.