Home / 3,894.97-5,374.98-2,126.59

Finding the Fourth Proportional to 3,894.97, 5,374.98 and 2,126.59

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Solution

The fourth proportional to 3,894.97, 5,374.98 and 2,126.59 is: 2,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.97 : 5,374.98 = 2,126.59 : x
  2. Step 2: Convert to fraction form
    3,894.97/5,374.98 = 2,126.59/x
  3. Step 3: Cross multiply
    3,894.97x = 5,374.98 × 2,126.59
  4. Step 4: Simplify right side
    3,894.97x = 11,430,371.26
  5. Step 5: Solve for x
    x = 11,430,371.26/3,894.97
  6. Step 6: Final answer
    x = 2,934.65

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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.