Home / 5,200.45-7,180.37-3,213.73

Finding the Fourth Proportional to 5,200.45, 7,180.37 and 3,213.73

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Solution

The fourth proportional to 5,200.45, 7,180.37 and 3,213.73 is: 4,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.45 : 7,180.37 = 3,213.73 : x
  2. Step 2: Convert to fraction form
    5,200.45/7,180.37 = 3,213.73/x
  3. Step 3: Cross multiply
    5,200.45x = 7,180.37 × 3,213.73
  4. Step 4: Simplify right side
    5,200.45x = 23,075,742.61
  5. Step 5: Solve for x
    x = 23,075,742.61/5,200.45
  6. Step 6: Final answer
    x = 4,437.26

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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.