Home / 1,935.98-2,670.77-1,189.66

Finding the Fourth Proportional to 1,935.98, 2,670.77 and 1,189.66

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Solution

The fourth proportional to 1,935.98, 2,670.77 and 1,189.66 is: 1,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.98 : 2,670.77 = 1,189.66 : x
  2. Step 2: Convert to fraction form
    1,935.98/2,670.77 = 1,189.66/x
  3. Step 3: Cross multiply
    1,935.98x = 2,670.77 × 1,189.66
  4. Step 4: Simplify right side
    1,935.98x = 3,177,317.05
  5. Step 5: Solve for x
    x = 3,177,317.05/1,935.98
  6. Step 6: Final answer
    x = 1,641.20

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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.