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Finding the Fourth Proportional to 7,879.71, 11,819.52 and 2,036.34

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Solution

The fourth proportional to 7,879.71, 11,819.52 and 2,036.34 is: 3,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.71 : 11,819.52 = 2,036.34 : x
  2. Step 2: Convert to fraction form
    7,879.71/11,819.52 = 2,036.34/x
  3. Step 3: Cross multiply
    7,879.71x = 11,819.52 × 2,036.34
  4. Step 4: Simplify right side
    7,879.71x = 24,068,561.36
  5. Step 5: Solve for x
    x = 24,068,561.36/7,879.71
  6. Step 6: Final answer
    x = 3,054.50

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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.