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Finding the Fourth Proportional to 2,769.81, 3,820.73 and 1,825.75

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Solution

The fourth proportional to 2,769.81, 3,820.73 and 1,825.75 is: 2,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.81 : 3,820.73 = 1,825.75 : x
  2. Step 2: Convert to fraction form
    2,769.81/3,820.73 = 1,825.75/x
  3. Step 3: Cross multiply
    2,769.81x = 3,820.73 × 1,825.75
  4. Step 4: Simplify right side
    2,769.81x = 6,975,697.80
  5. Step 5: Solve for x
    x = 6,975,697.80/2,769.81
  6. Step 6: Final answer
    x = 2,518.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.