Home / 5,181.53-7,151.36-3,057.58

Finding the Fourth Proportional to 5,181.53, 7,151.36 and 3,057.58

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Solution

The fourth proportional to 5,181.53, 7,151.36 and 3,057.58 is: 4,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.53 : 7,151.36 = 3,057.58 : x
  2. Step 2: Convert to fraction form
    5,181.53/7,151.36 = 3,057.58/x
  3. Step 3: Cross multiply
    5,181.53x = 7,151.36 × 3,057.58
  4. Step 4: Simplify right side
    5,181.53x = 21,865,819.55
  5. Step 5: Solve for x
    x = 21,865,819.55/5,181.53
  6. Step 6: Final answer
    x = 4,219.96

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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.