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Finding the Fourth Proportional to 1,894.44, 2,841.66 and 853.22

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Solution

The fourth proportional to 1,894.44, 2,841.66 and 853.22 is: 1,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.44 : 2,841.66 = 853.22 : x
  2. Step 2: Convert to fraction form
    1,894.44/2,841.66 = 853.22/x
  3. Step 3: Cross multiply
    1,894.44x = 2,841.66 × 853.22
  4. Step 4: Simplify right side
    1,894.44x = 2,424,567.54
  5. Step 5: Solve for x
    x = 2,424,567.54/1,894.44
  6. Step 6: Final answer
    x = 1,279.83

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1.5x scale

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.