Home / 3,622.19-5,431.10-1,976.45

Finding the Fourth Proportional to 3,622.19, 5,431.10 and 1,976.45

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Solution

The fourth proportional to 3,622.19, 5,431.10 and 1,976.45 is: 2,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.19 : 5,431.10 = 1,976.45 : x
  2. Step 2: Convert to fraction form
    3,622.19/5,431.10 = 1,976.45/x
  3. Step 3: Cross multiply
    3,622.19x = 5,431.10 × 1,976.45
  4. Step 4: Simplify right side
    3,622.19x = 10,734,260.56
  5. Step 5: Solve for x
    x = 10,734,260.56/3,622.19
  6. Step 6: Final answer
    x = 2,963.48

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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.