Home / 2,783.76-4,176.72-1,052.88

Finding the Fourth Proportional to 2,783.76, 4,176.72 and 1,052.88

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Solution

The fourth proportional to 2,783.76, 4,176.72 and 1,052.88 is: 1,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.76 : 4,176.72 = 1,052.88 : x
  2. Step 2: Convert to fraction form
    2,783.76/4,176.72 = 1,052.88/x
  3. Step 3: Cross multiply
    2,783.76x = 4,176.72 × 1,052.88
  4. Step 4: Simplify right side
    2,783.76x = 4,397,584.95
  5. Step 5: Solve for x
    x = 4,397,584.95/2,783.76
  6. Step 6: Final answer
    x = 1,579.73

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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.