Home / 6,894.75-9,515.25-3,910.85

Finding the Fourth Proportional to 6,894.75, 9,515.25 and 3,910.85

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Solution

The fourth proportional to 6,894.75, 9,515.25 and 3,910.85 is: 5,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,894.75 : 9,515.25 = 3,910.85 : x
  2. Step 2: Convert to fraction form
    6,894.75/9,515.25 = 3,910.85/x
  3. Step 3: Cross multiply
    6,894.75x = 9,515.25 × 3,910.85
  4. Step 4: Simplify right side
    6,894.75x = 37,212,667.89
  5. Step 5: Solve for x
    x = 37,212,667.89/6,894.75
  6. Step 6: Final answer
    x = 5,397.25

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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.