Home / 3,898.63-5,383.67-2,842.49

Finding the Fourth Proportional to 3,898.63, 5,383.67 and 2,842.49

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Solution

The fourth proportional to 3,898.63, 5,383.67 and 2,842.49 is: 3,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.63 : 5,383.67 = 2,842.49 : x
  2. Step 2: Convert to fraction form
    3,898.63/5,383.67 = 2,842.49/x
  3. Step 3: Cross multiply
    3,898.63x = 5,383.67 × 2,842.49
  4. Step 4: Simplify right side
    3,898.63x = 15,303,027.39
  5. Step 5: Solve for x
    x = 15,303,027.39/3,898.63
  6. Step 6: Final answer
    x = 3,925.23

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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.