Home / 7,271.20-10,906.80-3,322.45

Finding the Fourth Proportional to 7,271.20, 10,906.80 and 3,322.45

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Solution

The fourth proportional to 7,271.20, 10,906.80 and 3,322.45 is: 4,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.20 : 10,906.80 = 3,322.45 : x
  2. Step 2: Convert to fraction form
    7,271.20/10,906.80 = 3,322.45/x
  3. Step 3: Cross multiply
    7,271.20x = 10,906.80 × 3,322.45
  4. Step 4: Simplify right side
    7,271.20x = 36,237,297.66
  5. Step 5: Solve for x
    x = 36,237,297.66/7,271.20
  6. Step 6: Final answer
    x = 4,983.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.