Home / 1,127.12-1,692.63-1,082.97

Finding the Fourth Proportional to 1,127.12, 1,692.63 and 1,082.97

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Solution

The fourth proportional to 1,127.12, 1,692.63 and 1,082.97 is: 1,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.12 : 1,692.63 = 1,082.97 : x
  2. Step 2: Convert to fraction form
    1,127.12/1,692.63 = 1,082.97/x
  3. Step 3: Cross multiply
    1,127.12x = 1,692.63 × 1,082.97
  4. Step 4: Simplify right side
    1,127.12x = 1,833,067.51
  5. Step 5: Solve for x
    x = 1,833,067.51/1,127.12
  6. Step 6: Final answer
    x = 1,626.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.