Home / 2,769.66-3,821.88-1,574.64

Finding the Fourth Proportional to 2,769.66, 3,821.88 and 1,574.64

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Solution

The fourth proportional to 2,769.66, 3,821.88 and 1,574.64 is: 2,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.66 : 3,821.88 = 1,574.64 : x
  2. Step 2: Convert to fraction form
    2,769.66/3,821.88 = 1,574.64/x
  3. Step 3: Cross multiply
    2,769.66x = 3,821.88 × 1,574.64
  4. Step 4: Simplify right side
    2,769.66x = 6,018,085.12
  5. Step 5: Solve for x
    x = 6,018,085.12/2,769.66
  6. Step 6: Final answer
    x = 2,172.86

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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.