Home / 7,321.20-10,979.73-3,625.62

Finding the Fourth Proportional to 7,321.20, 10,979.73 and 3,625.62

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Solution

The fourth proportional to 7,321.20, 10,979.73 and 3,625.62 is: 5,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.20 : 10,979.73 = 3,625.62 : x
  2. Step 2: Convert to fraction form
    7,321.20/10,979.73 = 3,625.62/x
  3. Step 3: Cross multiply
    7,321.20x = 10,979.73 × 3,625.62
  4. Step 4: Simplify right side
    7,321.20x = 39,808,328.68
  5. Step 5: Solve for x
    x = 39,808,328.68/7,321.20
  6. Step 6: Final answer
    x = 5,437.40

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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.