Home / 3,091.97-4,638.02-1,860.41

Finding the Fourth Proportional to 3,091.97, 4,638.02 and 1,860.41

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Solution

The fourth proportional to 3,091.97, 4,638.02 and 1,860.41 is: 2,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.97 : 4,638.02 = 1,860.41 : x
  2. Step 2: Convert to fraction form
    3,091.97/4,638.02 = 1,860.41/x
  3. Step 3: Cross multiply
    3,091.97x = 4,638.02 × 1,860.41
  4. Step 4: Simplify right side
    3,091.97x = 8,628,586.30
  5. Step 5: Solve for x
    x = 8,628,586.30/3,091.97
  6. Step 6: Final answer
    x = 2,790.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.