Home / 3,894.67-5,374.63-2,126.27

Finding the Fourth Proportional to 3,894.67, 5,374.63 and 2,126.27

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Solution

The fourth proportional to 3,894.67, 5,374.63 and 2,126.27 is: 2,934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.67 : 5,374.63 = 2,126.27 : x
  2. Step 2: Convert to fraction form
    3,894.67/5,374.63 = 2,126.27/x
  3. Step 3: Cross multiply
    3,894.67x = 5,374.63 × 2,126.27
  4. Step 4: Simplify right side
    3,894.67x = 11,427,922.65
  5. Step 5: Solve for x
    x = 11,427,922.65/3,894.67
  6. Step 6: Final answer
    x = 2,934.25

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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.