Home / 1,928.30-2,892.42-629.77

Finding the Fourth Proportional to 1,928.30, 2,892.42 and 629.77

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Solution

The fourth proportional to 1,928.30, 2,892.42 and 629.77 is: 944.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.30 : 2,892.42 = 629.77 : x
  2. Step 2: Convert to fraction form
    1,928.30/2,892.42 = 629.77/x
  3. Step 3: Cross multiply
    1,928.30x = 2,892.42 × 629.77
  4. Step 4: Simplify right side
    1,928.30x = 1,821,544.88
  5. Step 5: Solve for x
    x = 1,821,544.88/1,928.30
  6. Step 6: Final answer
    x = 944.64

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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.