Home / 1,955.73-2,698.23-1,115.82

Finding the Fourth Proportional to 1,955.73, 2,698.23 and 1,115.82

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Solution

The fourth proportional to 1,955.73, 2,698.23 and 1,115.82 is: 1,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.73 : 2,698.23 = 1,115.82 : x
  2. Step 2: Convert to fraction form
    1,955.73/2,698.23 = 1,115.82/x
  3. Step 3: Cross multiply
    1,955.73x = 2,698.23 × 1,115.82
  4. Step 4: Simplify right side
    1,955.73x = 3,010,739.00
  5. Step 5: Solve for x
    x = 3,010,739.00/1,955.73
  6. Step 6: Final answer
    x = 1,539.45

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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.