Home / 5,205.31-7,181.56-2,965.60

Finding the Fourth Proportional to 5,205.31, 7,181.56 and 2,965.60

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Solution

The fourth proportional to 5,205.31, 7,181.56 and 2,965.60 is: 4,091.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.31 : 7,181.56 = 2,965.60 : x
  2. Step 2: Convert to fraction form
    5,205.31/7,181.56 = 2,965.60/x
  3. Step 3: Cross multiply
    5,205.31x = 7,181.56 × 2,965.60
  4. Step 4: Simplify right side
    5,205.31x = 21,297,634.34
  5. Step 5: Solve for x
    x = 21,297,634.34/5,205.31
  6. Step 6: Final answer
    x = 4,091.52

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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.