Home / 1,951.11-2,692.69-1,111.85

Finding the Fourth Proportional to 1,951.11, 2,692.69 and 1,111.85

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Solution

The fourth proportional to 1,951.11, 2,692.69 and 1,111.85 is: 1,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.11 : 2,692.69 = 1,111.85 : x
  2. Step 2: Convert to fraction form
    1,951.11/2,692.69 = 1,111.85/x
  3. Step 3: Cross multiply
    1,951.11x = 2,692.69 × 1,111.85
  4. Step 4: Simplify right side
    1,951.11x = 2,993,867.38
  5. Step 5: Solve for x
    x = 2,993,867.38/1,951.11
  6. Step 6: Final answer
    x = 1,534.44

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1.5x scale

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.