Home / 2,728.08-3,761.84-1,784.68

Finding the Fourth Proportional to 2,728.08, 3,761.84 and 1,784.68

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Solution

The fourth proportional to 2,728.08, 3,761.84 and 1,784.68 is: 2,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.08 : 3,761.84 = 1,784.68 : x
  2. Step 2: Convert to fraction form
    2,728.08/3,761.84 = 1,784.68/x
  3. Step 3: Cross multiply
    2,728.08x = 3,761.84 × 1,784.68
  4. Step 4: Simplify right side
    2,728.08x = 6,713,696.83
  5. Step 5: Solve for x
    x = 6,713,696.83/2,728.08
  6. Step 6: Final answer
    x = 2,460.96

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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.