Home / 2,728.05-4,092.04-1,803.40

Finding the Fourth Proportional to 2,728.05, 4,092.04 and 1,803.40

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Solution

The fourth proportional to 2,728.05, 4,092.04 and 1,803.40 is: 2,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.05 : 4,092.04 = 1,803.40 : x
  2. Step 2: Convert to fraction form
    2,728.05/4,092.04 = 1,803.40/x
  3. Step 3: Cross multiply
    2,728.05x = 4,092.04 × 1,803.40
  4. Step 4: Simplify right side
    2,728.05x = 7,379,584.94
  5. Step 5: Solve for x
    x = 7,379,584.94/2,728.05
  6. Step 6: Final answer
    x = 2,705.08

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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.