Home / 2,975.30-4,104.60-2,091.68

Finding the Fourth Proportional to 2,975.30, 4,104.60 and 2,091.68

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Solution

The fourth proportional to 2,975.30, 4,104.60 and 2,091.68 is: 2,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.30 : 4,104.60 = 2,091.68 : x
  2. Step 2: Convert to fraction form
    2,975.30/4,104.60 = 2,091.68/x
  3. Step 3: Cross multiply
    2,975.30x = 4,104.60 × 2,091.68
  4. Step 4: Simplify right side
    2,975.30x = 8,585,509.73
  5. Step 5: Solve for x
    x = 8,585,509.73/2,975.30
  6. Step 6: Final answer
    x = 2,885.59

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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.