Home / 2,758.89-3,808.16-1,766.84

Finding the Fourth Proportional to 2,758.89, 3,808.16 and 1,766.84

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Solution

The fourth proportional to 2,758.89, 3,808.16 and 1,766.84 is: 2,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.89 : 3,808.16 = 1,766.84 : x
  2. Step 2: Convert to fraction form
    2,758.89/3,808.16 = 1,766.84/x
  3. Step 3: Cross multiply
    2,758.89x = 3,808.16 × 1,766.84
  4. Step 4: Simplify right side
    2,758.89x = 6,728,409.41
  5. Step 5: Solve for x
    x = 6,728,409.41/2,758.89
  6. Step 6: Final answer
    x = 2,438.81

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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.