Home / 5,181.56-7,151.48-3,056.96

Finding the Fourth Proportional to 5,181.56, 7,151.48 and 3,056.96

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Solution

The fourth proportional to 5,181.56, 7,151.48 and 3,056.96 is: 4,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.56 : 7,151.48 = 3,056.96 : x
  2. Step 2: Convert to fraction form
    5,181.56/7,151.48 = 3,056.96/x
  3. Step 3: Cross multiply
    5,181.56x = 7,151.48 × 3,056.96
  4. Step 4: Simplify right side
    5,181.56x = 21,861,788.30
  5. Step 5: Solve for x
    x = 21,861,788.30/5,181.56
  6. Step 6: Final answer
    x = 4,219.15

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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.