Home / 3,000.28-4,498.70-919.73

Finding the Fourth Proportional to 3,000.28, 4,498.70 and 919.73

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Solution

The fourth proportional to 3,000.28, 4,498.70 and 919.73 is: 1,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.28 : 4,498.70 = 919.73 : x
  2. Step 2: Convert to fraction form
    3,000.28/4,498.70 = 919.73/x
  3. Step 3: Cross multiply
    3,000.28x = 4,498.70 × 919.73
  4. Step 4: Simplify right side
    3,000.28x = 4,137,589.35
  5. Step 5: Solve for x
    x = 4,137,589.35/3,000.28
  6. Step 6: Final answer
    x = 1,379.07

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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.