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Finding the Fourth Proportional to 1,894.48, 2,614.80 and 1,196.80

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Solution

The fourth proportional to 1,894.48, 2,614.80 and 1,196.80 is: 1,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.48 : 2,614.80 = 1,196.80 : x
  2. Step 2: Convert to fraction form
    1,894.48/2,614.80 = 1,196.80/x
  3. Step 3: Cross multiply
    1,894.48x = 2,614.80 × 1,196.80
  4. Step 4: Simplify right side
    1,894.48x = 3,129,392.64
  5. Step 5: Solve for x
    x = 3,129,392.64/1,894.48
  6. Step 6: Final answer
    x = 1,651.85

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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.