Home / 1,912.60-2,853.77-1,774.90

Finding the Fourth Proportional to 1,912.60, 2,853.77 and 1,774.90

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Solution

The fourth proportional to 1,912.60, 2,853.77 and 1,774.90 is: 2,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.60 : 2,853.77 = 1,774.90 : x
  2. Step 2: Convert to fraction form
    1,912.60/2,853.77 = 1,774.90/x
  3. Step 3: Cross multiply
    1,912.60x = 2,853.77 × 1,774.90
  4. Step 4: Simplify right side
    1,912.60x = 5,065,156.37
  5. Step 5: Solve for x
    x = 5,065,156.37/1,912.60
  6. Step 6: Final answer
    x = 2,648.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.