Home / 3,777.60-5,664.78-1,926.75

Finding the Fourth Proportional to 3,777.60, 5,664.78 and 1,926.75

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Solution

The fourth proportional to 3,777.60, 5,664.78 and 1,926.75 is: 2,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.60 : 5,664.78 = 1,926.75 : x
  2. Step 2: Convert to fraction form
    3,777.60/5,664.78 = 1,926.75/x
  3. Step 3: Cross multiply
    3,777.60x = 5,664.78 × 1,926.75
  4. Step 4: Simplify right side
    3,777.60x = 10,914,614.87
  5. Step 5: Solve for x
    x = 10,914,614.87/3,777.60
  6. Step 6: Final answer
    x = 2,889.30

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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.