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Finding the Fourth Proportional to 6,743.50, 10,115.26 and 1,879.50

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Solution

The fourth proportional to 6,743.50, 10,115.26 and 1,879.50 is: 2,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,743.50 : 10,115.26 = 1,879.50 : x
  2. Step 2: Convert to fraction form
    6,743.50/10,115.26 = 1,879.50/x
  3. Step 3: Cross multiply
    6,743.50x = 10,115.26 × 1,879.50
  4. Step 4: Simplify right side
    6,743.50x = 19,011,631.17
  5. Step 5: Solve for x
    x = 19,011,631.17/6,743.50
  6. Step 6: Final answer
    x = 2,819.25

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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.