Home / 3,091.12-4,628.58-2,119.12

Finding the Fourth Proportional to 3,091.12, 4,628.58 and 2,119.12

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Solution

The fourth proportional to 3,091.12, 4,628.58 and 2,119.12 is: 3,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.12 : 4,628.58 = 2,119.12 : x
  2. Step 2: Convert to fraction form
    3,091.12/4,628.58 = 2,119.12/x
  3. Step 3: Cross multiply
    3,091.12x = 4,628.58 × 2,119.12
  4. Step 4: Simplify right side
    3,091.12x = 9,808,516.45
  5. Step 5: Solve for x
    x = 9,808,516.45/3,091.12
  6. Step 6: Final answer
    x = 3,173.13

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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.