Home / 1,894.28-2,841.36-1,119.65

Finding the Fourth Proportional to 1,894.28, 2,841.36 and 1,119.65

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Solution

The fourth proportional to 1,894.28, 2,841.36 and 1,119.65 is: 1,679.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.28 : 2,841.36 = 1,119.65 : x
  2. Step 2: Convert to fraction form
    1,894.28/2,841.36 = 1,119.65/x
  3. Step 3: Cross multiply
    1,894.28x = 2,841.36 × 1,119.65
  4. Step 4: Simplify right side
    1,894.28x = 3,181,314.52
  5. Step 5: Solve for x
    x = 3,181,314.52/1,894.28
  6. Step 6: Final answer
    x = 1,679.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.