Home / 2,783.70-4,173.19-2,001.78

Finding the Fourth Proportional to 2,783.70, 4,173.19 and 2,001.78

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Solution

The fourth proportional to 2,783.70, 4,173.19 and 2,001.78 is: 3,000.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.70 : 4,173.19 = 2,001.78 : x
  2. Step 2: Convert to fraction form
    2,783.70/4,173.19 = 2,001.78/x
  3. Step 3: Cross multiply
    2,783.70x = 4,173.19 × 2,001.78
  4. Step 4: Simplify right side
    2,783.70x = 8,353,803.27
  5. Step 5: Solve for x
    x = 8,353,803.27/2,783.70
  6. Step 6: Final answer
    x = 3,000.97

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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.