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Finding the Fourth Proportional to 5,012.82, 6,917.78 and 2,774.64

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Solution

The fourth proportional to 5,012.82, 6,917.78 and 2,774.64 is: 3,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.82 : 6,917.78 = 2,774.64 : x
  2. Step 2: Convert to fraction form
    5,012.82/6,917.78 = 2,774.64/x
  3. Step 3: Cross multiply
    5,012.82x = 6,917.78 × 2,774.64
  4. Step 4: Simplify right side
    5,012.82x = 19,194,349.10
  5. Step 5: Solve for x
    x = 19,194,349.10/5,012.82
  6. Step 6: Final answer
    x = 3,829.05

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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.