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Finding the Fourth Proportional to 5,012.75, 6,917.61 and 2,774.78

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Solution

The fourth proportional to 5,012.75, 6,917.61 and 2,774.78 is: 3,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.75 : 6,917.61 = 2,774.78 : x
  2. Step 2: Convert to fraction form
    5,012.75/6,917.61 = 2,774.78/x
  3. Step 3: Cross multiply
    5,012.75x = 6,917.61 × 2,774.78
  4. Step 4: Simplify right side
    5,012.75x = 19,194,845.88
  5. Step 5: Solve for x
    x = 19,194,845.88/5,012.75
  6. Step 6: Final answer
    x = 3,829.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.