Home / 7,342.60-11,015.52-3,879.04

Finding the Fourth Proportional to 7,342.60, 11,015.52 and 3,879.04

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Solution

The fourth proportional to 7,342.60, 11,015.52 and 3,879.04 is: 5,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.60 : 11,015.52 = 3,879.04 : x
  2. Step 2: Convert to fraction form
    7,342.60/11,015.52 = 3,879.04/x
  3. Step 3: Cross multiply
    7,342.60x = 11,015.52 × 3,879.04
  4. Step 4: Simplify right side
    7,342.60x = 42,729,642.70
  5. Step 5: Solve for x
    x = 42,729,642.70/7,342.60
  6. Step 6: Final answer
    x = 5,819.42

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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.