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Finding the Fourth Proportional to 3,777.60, 5,212.99 and 2,099.01

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Solution

The fourth proportional to 3,777.60, 5,212.99 and 2,099.01 is: 2,896.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.60 : 5,212.99 = 2,099.01 : x
  2. Step 2: Convert to fraction form
    3,777.60/5,212.99 = 2,099.01/x
  3. Step 3: Cross multiply
    3,777.60x = 5,212.99 × 2,099.01
  4. Step 4: Simplify right side
    3,777.60x = 10,942,140.31
  5. Step 5: Solve for x
    x = 10,942,140.31/3,777.60
  6. Step 6: Final answer
    x = 2,896.58

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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.