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Finding the Fourth Proportional to 3,387.66, 5,083.74 and 1,196.40

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Solution

The fourth proportional to 3,387.66, 5,083.74 and 1,196.40 is: 1,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.66 : 5,083.74 = 1,196.40 : x
  2. Step 2: Convert to fraction form
    3,387.66/5,083.74 = 1,196.40/x
  3. Step 3: Cross multiply
    3,387.66x = 5,083.74 × 1,196.40
  4. Step 4: Simplify right side
    3,387.66x = 6,082,186.54
  5. Step 5: Solve for x
    x = 6,082,186.54/3,387.66
  6. Step 6: Final answer
    x = 1,795.39

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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.