Home / 2,766.30-3,822.35-2,211.35

Finding the Fourth Proportional to 2,766.30, 3,822.35 and 2,211.35

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Solution

The fourth proportional to 2,766.30, 3,822.35 and 2,211.35 is: 3,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.30 : 3,822.35 = 2,211.35 : x
  2. Step 2: Convert to fraction form
    2,766.30/3,822.35 = 2,211.35/x
  3. Step 3: Cross multiply
    2,766.30x = 3,822.35 × 2,211.35
  4. Step 4: Simplify right side
    2,766.30x = 8,452,553.67
  5. Step 5: Solve for x
    x = 8,452,553.67/2,766.30
  6. Step 6: Final answer
    x = 3,055.54

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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.