Home / 2,769.64-3,821.44-1,574.36

Finding the Fourth Proportional to 2,769.64, 3,821.44 and 1,574.36

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Solution

The fourth proportional to 2,769.64, 3,821.44 and 1,574.36 is: 2,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.64 : 3,821.44 = 1,574.36 : x
  2. Step 2: Convert to fraction form
    2,769.64/3,821.44 = 1,574.36/x
  3. Step 3: Cross multiply
    2,769.64x = 3,821.44 × 1,574.36
  4. Step 4: Simplify right side
    2,769.64x = 6,016,322.28
  5. Step 5: Solve for x
    x = 6,016,322.28/2,769.64
  6. Step 6: Final answer
    x = 2,172.24

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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.