Home / 5,180.42-7,148.90-2,822.56

Finding the Fourth Proportional to 5,180.42, 7,148.90 and 2,822.56

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Solution

The fourth proportional to 5,180.42, 7,148.90 and 2,822.56 is: 3,895.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.42 : 7,148.90 = 2,822.56 : x
  2. Step 2: Convert to fraction form
    5,180.42/7,148.90 = 2,822.56/x
  3. Step 3: Cross multiply
    5,180.42x = 7,148.90 × 2,822.56
  4. Step 4: Simplify right side
    5,180.42x = 20,178,163.44
  5. Step 5: Solve for x
    x = 20,178,163.44/5,180.42
  6. Step 6: Final answer
    x = 3,895.09

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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.