Home / 3,020.07-4,168.72-1,902.88

Finding the Fourth Proportional to 3,020.07, 4,168.72 and 1,902.88

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Solution

The fourth proportional to 3,020.07, 4,168.72 and 1,902.88 is: 2,626.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.07 : 4,168.72 = 1,902.88 : x
  2. Step 2: Convert to fraction form
    3,020.07/4,168.72 = 1,902.88/x
  3. Step 3: Cross multiply
    3,020.07x = 4,168.72 × 1,902.88
  4. Step 4: Simplify right side
    3,020.07x = 7,932,573.91
  5. Step 5: Solve for x
    x = 7,932,573.91/3,020.07
  6. Step 6: Final answer
    x = 2,626.62

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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.