Home / 1,896.95-2,617.67-1,188.77

Finding the Fourth Proportional to 1,896.95, 2,617.67 and 1,188.77

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Solution

The fourth proportional to 1,896.95, 2,617.67 and 1,188.77 is: 1,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.95 : 2,617.67 = 1,188.77 : x
  2. Step 2: Convert to fraction form
    1,896.95/2,617.67 = 1,188.77/x
  3. Step 3: Cross multiply
    1,896.95x = 2,617.67 × 1,188.77
  4. Step 4: Simplify right side
    1,896.95x = 3,111,805.49
  5. Step 5: Solve for x
    x = 3,111,805.49/1,896.95
  6. Step 6: Final answer
    x = 1,640.42

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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.