Home / 3,316.82-4,975.83-1,125.43

Finding the Fourth Proportional to 3,316.82, 4,975.83 and 1,125.43

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Solution

The fourth proportional to 3,316.82, 4,975.83 and 1,125.43 is: 1,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.82 : 4,975.83 = 1,125.43 : x
  2. Step 2: Convert to fraction form
    3,316.82/4,975.83 = 1,125.43/x
  3. Step 3: Cross multiply
    3,316.82x = 4,975.83 × 1,125.43
  4. Step 4: Simplify right side
    3,316.82x = 5,599,935.92
  5. Step 5: Solve for x
    x = 5,599,935.92/3,316.82
  6. Step 6: Final answer
    x = 1,688.35

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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.