Home / 1,935.14-2,670.91-1,189.73

Finding the Fourth Proportional to 1,935.14, 2,670.91 and 1,189.73

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Solution

The fourth proportional to 1,935.14, 2,670.91 and 1,189.73 is: 1,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.14 : 2,670.91 = 1,189.73 : x
  2. Step 2: Convert to fraction form
    1,935.14/2,670.91 = 1,189.73/x
  3. Step 3: Cross multiply
    1,935.14x = 2,670.91 × 1,189.73
  4. Step 4: Simplify right side
    1,935.14x = 3,177,665.46
  5. Step 5: Solve for x
    x = 3,177,665.46/1,935.14
  6. Step 6: Final answer
    x = 1,642.09

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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.