Home / 5,181.56-7,772.76-1,623.44

Finding the Fourth Proportional to 5,181.56, 7,772.76 and 1,623.44

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Solution

The fourth proportional to 5,181.56, 7,772.76 and 1,623.44 is: 2,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.56 : 7,772.76 = 1,623.44 : x
  2. Step 2: Convert to fraction form
    5,181.56/7,772.76 = 1,623.44/x
  3. Step 3: Cross multiply
    5,181.56x = 7,772.76 × 1,623.44
  4. Step 4: Simplify right side
    5,181.56x = 12,618,609.49
  5. Step 5: Solve for x
    x = 12,618,609.49/5,181.56
  6. Step 6: Final answer
    x = 2,435.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.