Home / 1,928.92-2,891.34-630.04

Finding the Fourth Proportional to 1,928.92, 2,891.34 and 630.04

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Solution

The fourth proportional to 1,928.92, 2,891.34 and 630.04 is: 944.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.92 : 2,891.34 = 630.04 : x
  2. Step 2: Convert to fraction form
    1,928.92/2,891.34 = 630.04/x
  3. Step 3: Cross multiply
    1,928.92x = 2,891.34 × 630.04
  4. Step 4: Simplify right side
    1,928.92x = 1,821,659.85
  5. Step 5: Solve for x
    x = 1,821,659.85/1,928.92
  6. Step 6: Final answer
    x = 944.39

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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.