Home / 2,769.36-3,821.56-1,651.56

Finding the Fourth Proportional to 2,769.36, 3,821.56 and 1,651.56

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Solution

The fourth proportional to 2,769.36, 3,821.56 and 1,651.56 is: 2,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.36 : 3,821.56 = 1,651.56 : x
  2. Step 2: Convert to fraction form
    2,769.36/3,821.56 = 1,651.56/x
  3. Step 3: Cross multiply
    2,769.36x = 3,821.56 × 1,651.56
  4. Step 4: Simplify right side
    2,769.36x = 6,311,535.63
  5. Step 5: Solve for x
    x = 6,311,535.63/2,769.36
  6. Step 6: Final answer
    x = 2,279.06

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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.