Home / 1,905.44-2,857.55-606.61

Finding the Fourth Proportional to 1,905.44, 2,857.55 and 606.61

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Solution

The fourth proportional to 1,905.44, 2,857.55 and 606.61 is: 909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.44 : 2,857.55 = 606.61 : x
  2. Step 2: Convert to fraction form
    1,905.44/2,857.55 = 606.61/x
  3. Step 3: Cross multiply
    1,905.44x = 2,857.55 × 606.61
  4. Step 4: Simplify right side
    1,905.44x = 1,733,418.41
  5. Step 5: Solve for x
    x = 1,733,418.41/1,905.44
  6. Step 6: Final answer
    x = 909.72

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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.