Home / 3,784.65-5,222.46-2,191.32

Finding the Fourth Proportional to 3,784.65, 5,222.46 and 2,191.32

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Solution

The fourth proportional to 3,784.65, 5,222.46 and 2,191.32 is: 3,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.65 : 5,222.46 = 2,191.32 : x
  2. Step 2: Convert to fraction form
    3,784.65/5,222.46 = 2,191.32/x
  3. Step 3: Cross multiply
    3,784.65x = 5,222.46 × 2,191.32
  4. Step 4: Simplify right side
    3,784.65x = 11,444,081.05
  5. Step 5: Solve for x
    x = 11,444,081.05/3,784.65
  6. Step 6: Final answer
    x = 3,023.81

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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.