Home / 3,894.43-5,374.23-2,126.07

Finding the Fourth Proportional to 3,894.43, 5,374.23 and 2,126.07

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Solution

The fourth proportional to 3,894.43, 5,374.23 and 2,126.07 is: 2,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.43 : 5,374.23 = 2,126.07 : x
  2. Step 2: Convert to fraction form
    3,894.43/5,374.23 = 2,126.07/x
  3. Step 3: Cross multiply
    3,894.43x = 5,374.23 × 2,126.07
  4. Step 4: Simplify right side
    3,894.43x = 11,425,951.67
  5. Step 5: Solve for x
    x = 11,425,951.67/3,894.43
  6. Step 6: Final answer
    x = 2,933.92

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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.