Home / 5,297.35-7,310.78-2,940.25

Finding the Fourth Proportional to 5,297.35, 7,310.78 and 2,940.25

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Solution

The fourth proportional to 5,297.35, 7,310.78 and 2,940.25 is: 4,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.35 : 7,310.78 = 2,940.25 : x
  2. Step 2: Convert to fraction form
    5,297.35/7,310.78 = 2,940.25/x
  3. Step 3: Cross multiply
    5,297.35x = 7,310.78 × 2,940.25
  4. Step 4: Simplify right side
    5,297.35x = 21,495,520.90
  5. Step 5: Solve for x
    x = 21,495,520.90/5,297.35
  6. Step 6: Final answer
    x = 4,057.79

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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.