Home / 4,912.06-6,780.74-2,922.80

Finding the Fourth Proportional to 4,912.06, 6,780.74 and 2,922.80

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Solution

The fourth proportional to 4,912.06, 6,780.74 and 2,922.80 is: 4,034.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.06 : 6,780.74 = 2,922.80 : x
  2. Step 2: Convert to fraction form
    4,912.06/6,780.74 = 2,922.80/x
  3. Step 3: Cross multiply
    4,912.06x = 6,780.74 × 2,922.80
  4. Step 4: Simplify right side
    4,912.06x = 19,818,744.72
  5. Step 5: Solve for x
    x = 19,818,744.72/4,912.06
  6. Step 6: Final answer
    x = 4,034.71

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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.