Home / 3,629.18-5,441.34-1,680.32

Finding the Fourth Proportional to 3,629.18, 5,441.34 and 1,680.32

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Solution

The fourth proportional to 3,629.18, 5,441.34 and 1,680.32 is: 2,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.18 : 5,441.34 = 1,680.32 : x
  2. Step 2: Convert to fraction form
    3,629.18/5,441.34 = 1,680.32/x
  3. Step 3: Cross multiply
    3,629.18x = 5,441.34 × 1,680.32
  4. Step 4: Simplify right side
    3,629.18x = 9,143,192.43
  5. Step 5: Solve for x
    x = 9,143,192.43/3,629.18
  6. Step 6: Final answer
    x = 2,519.35

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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.