Home / 1,979.98-2,726.80-1,936.93

Finding the Fourth Proportional to 1,979.98, 2,726.80 and 1,936.93

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Solution

The fourth proportional to 1,979.98, 2,726.80 and 1,936.93 is: 2,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.98 : 2,726.80 = 1,936.93 : x
  2. Step 2: Convert to fraction form
    1,979.98/2,726.80 = 1,936.93/x
  3. Step 3: Cross multiply
    1,979.98x = 2,726.80 × 1,936.93
  4. Step 4: Simplify right side
    1,979.98x = 5,281,610.85
  5. Step 5: Solve for x
    x = 5,281,610.85/1,979.98
  6. Step 6: Final answer
    x = 2,667.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.