Home / 7,318.20-10,974.60-3,619.20

Finding the Fourth Proportional to 7,318.20, 10,974.60 and 3,619.20

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Solution

The fourth proportional to 7,318.20, 10,974.60 and 3,619.20 is: 5,427.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.20 : 10,974.60 = 3,619.20 : x
  2. Step 2: Convert to fraction form
    7,318.20/10,974.60 = 3,619.20/x
  3. Step 3: Cross multiply
    7,318.20x = 10,974.60 × 3,619.20
  4. Step 4: Simplify right side
    7,318.20x = 39,719,272.32
  5. Step 5: Solve for x
    x = 39,719,272.32/7,318.20
  6. Step 6: Final answer
    x = 5,427.46

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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.