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Finding the Fourth Proportional to 1,364.08, 1,884.12 and 1,343.60

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Solution

The fourth proportional to 1,364.08, 1,884.12 and 1,343.60 is: 1,855.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.08 : 1,884.12 = 1,343.60 : x
  2. Step 2: Convert to fraction form
    1,364.08/1,884.12 = 1,343.60/x
  3. Step 3: Cross multiply
    1,364.08x = 1,884.12 × 1,343.60
  4. Step 4: Simplify right side
    1,364.08x = 2,531,503.63
  5. Step 5: Solve for x
    x = 2,531,503.63/1,364.08
  6. Step 6: Final answer
    x = 1,855.83

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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.