Home / 1,934.88-2,670.56-1,189.47

Finding the Fourth Proportional to 1,934.88, 2,670.56 and 1,189.47

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Solution

The fourth proportional to 1,934.88, 2,670.56 and 1,189.47 is: 1,641.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.88 : 2,670.56 = 1,189.47 : x
  2. Step 2: Convert to fraction form
    1,934.88/2,670.56 = 1,189.47/x
  3. Step 3: Cross multiply
    1,934.88x = 2,670.56 × 1,189.47
  4. Step 4: Simplify right side
    1,934.88x = 3,176,551.00
  5. Step 5: Solve for x
    x = 3,176,551.00/1,934.88
  6. Step 6: Final answer
    x = 1,641.73

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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.