Home / 2,769.56-3,820.20-1,838.08

Finding the Fourth Proportional to 2,769.56, 3,820.20 and 1,838.08

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Solution

The fourth proportional to 2,769.56, 3,820.20 and 1,838.08 is: 2,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.56 : 3,820.20 = 1,838.08 : x
  2. Step 2: Convert to fraction form
    2,769.56/3,820.20 = 1,838.08/x
  3. Step 3: Cross multiply
    2,769.56x = 3,820.20 × 1,838.08
  4. Step 4: Simplify right side
    2,769.56x = 7,021,833.22
  5. Step 5: Solve for x
    x = 7,021,833.22/2,769.56
  6. Step 6: Final answer
    x = 2,535.36

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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.