Home / 5,211.27-7,817.00-1,879.74

Finding the Fourth Proportional to 5,211.27, 7,817.00 and 1,879.74

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Solution

The fourth proportional to 5,211.27, 7,817.00 and 1,879.74 is: 2,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.27 : 7,817.00 = 1,879.74 : x
  2. Step 2: Convert to fraction form
    5,211.27/7,817.00 = 1,879.74/x
  3. Step 3: Cross multiply
    5,211.27x = 7,817.00 × 1,879.74
  4. Step 4: Simplify right side
    5,211.27x = 14,693,918.18
  5. Step 5: Solve for x
    x = 14,693,918.18/5,211.27
  6. Step 6: Final answer
    x = 2,819.64

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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.