Home / 1,973.67-2,721.87-1,227.39

Finding the Fourth Proportional to 1,973.67, 2,721.87 and 1,227.39

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Solution

The fourth proportional to 1,973.67, 2,721.87 and 1,227.39 is: 1,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.67 : 2,721.87 = 1,227.39 : x
  2. Step 2: Convert to fraction form
    1,973.67/2,721.87 = 1,227.39/x
  3. Step 3: Cross multiply
    1,973.67x = 2,721.87 × 1,227.39
  4. Step 4: Simplify right side
    1,973.67x = 3,340,796.02
  5. Step 5: Solve for x
    x = 3,340,796.02/1,973.67
  6. Step 6: Final answer
    x = 1,692.68

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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.