Home / 4,020.60-6,022.80-2,789.40

Finding the Fourth Proportional to 4,020.60, 6,022.80 and 2,789.40

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Solution

The fourth proportional to 4,020.60, 6,022.80 and 2,789.40 is: 4,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020.60 : 6,022.80 = 2,789.40 : x
  2. Step 2: Convert to fraction form
    4,020.60/6,022.80 = 2,789.40/x
  3. Step 3: Cross multiply
    4,020.60x = 6,022.80 × 2,789.40
  4. Step 4: Simplify right side
    4,020.60x = 16,799,998.32
  5. Step 5: Solve for x
    x = 16,799,998.32/4,020.60
  6. Step 6: Final answer
    x = 4,178.48

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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.