Home / 4,608.89-6,912.56-1,976.81

Finding the Fourth Proportional to 4,608.89, 6,912.56 and 1,976.81

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Solution

The fourth proportional to 4,608.89, 6,912.56 and 1,976.81 is: 2,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.89 : 6,912.56 = 1,976.81 : x
  2. Step 2: Convert to fraction form
    4,608.89/6,912.56 = 1,976.81/x
  3. Step 3: Cross multiply
    4,608.89x = 6,912.56 × 1,976.81
  4. Step 4: Simplify right side
    4,608.89x = 13,664,839.96
  5. Step 5: Solve for x
    x = 13,664,839.96/4,608.89
  6. Step 6: Final answer
    x = 2,964.89

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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.