Home / 2,783.72-4,176.66-1,053.56

Finding the Fourth Proportional to 2,783.72, 4,176.66 and 1,053.56

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Solution

The fourth proportional to 2,783.72, 4,176.66 and 1,053.56 is: 1,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.72 : 4,176.66 = 1,053.56 : x
  2. Step 2: Convert to fraction form
    2,783.72/4,176.66 = 1,053.56/x
  3. Step 3: Cross multiply
    2,783.72x = 4,176.66 × 1,053.56
  4. Step 4: Simplify right side
    2,783.72x = 4,400,361.91
  5. Step 5: Solve for x
    x = 4,400,361.91/2,783.72
  6. Step 6: Final answer
    x = 1,580.75

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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.