Home / 3,894.38-5,374.09-2,126.00

Finding the Fourth Proportional to 3,894.38, 5,374.09 and 2,126.00

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Solution

The fourth proportional to 3,894.38, 5,374.09 and 2,126.00 is: 2,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.38 : 5,374.09 = 2,126.00 : x
  2. Step 2: Convert to fraction form
    3,894.38/5,374.09 = 2,126.00/x
  3. Step 3: Cross multiply
    3,894.38x = 5,374.09 × 2,126.00
  4. Step 4: Simplify right side
    3,894.38x = 11,425,277.84
  5. Step 5: Solve for x
    x = 11,425,277.84/3,894.38
  6. Step 6: Final answer
    x = 2,933.79

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1.5x scale

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.