Home / 3,680.49-5,516.16-1,728.60

Finding the Fourth Proportional to 3,680.49, 5,516.16 and 1,728.60

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Solution

The fourth proportional to 3,680.49, 5,516.16 and 1,728.60 is: 2,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.49 : 5,516.16 = 1,728.60 : x
  2. Step 2: Convert to fraction form
    3,680.49/5,516.16 = 1,728.60/x
  3. Step 3: Cross multiply
    3,680.49x = 5,516.16 × 1,728.60
  4. Step 4: Simplify right side
    3,680.49x = 9,535,234.18
  5. Step 5: Solve for x
    x = 9,535,234.18/3,680.49
  6. Step 6: Final answer
    x = 2,590.75

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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.