Home / 2,804.42-3,871.73-1,861.49

Finding the Fourth Proportional to 2,804.42, 3,871.73 and 1,861.49

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Solution

The fourth proportional to 2,804.42, 3,871.73 and 1,861.49 is: 2,569.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.42 : 3,871.73 = 1,861.49 : x
  2. Step 2: Convert to fraction form
    2,804.42/3,871.73 = 1,861.49/x
  3. Step 3: Cross multiply
    2,804.42x = 3,871.73 × 1,861.49
  4. Step 4: Simplify right side
    2,804.42x = 7,207,186.68
  5. Step 5: Solve for x
    x = 7,207,186.68/2,804.42
  6. Step 6: Final answer
    x = 2,569.94

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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.