Home / 3,622.08-5,436.24-1,980.24

Finding the Fourth Proportional to 3,622.08, 5,436.24 and 1,980.24

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Solution

The fourth proportional to 3,622.08, 5,436.24 and 1,980.24 is: 2,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.08 : 5,436.24 = 1,980.24 : x
  2. Step 2: Convert to fraction form
    3,622.08/5,436.24 = 1,980.24/x
  3. Step 3: Cross multiply
    3,622.08x = 5,436.24 × 1,980.24
  4. Step 4: Simplify right side
    3,622.08x = 10,765,059.90
  5. Step 5: Solve for x
    x = 10,765,059.90/3,622.08
  6. Step 6: Final answer
    x = 2,972.07

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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.