Home / 7,813.11-11,711.46-2,879.60

Finding the Fourth Proportional to 7,813.11, 11,711.46 and 2,879.60

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Solution

The fourth proportional to 7,813.11, 11,711.46 and 2,879.60 is: 4,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.11 : 11,711.46 = 2,879.60 : x
  2. Step 2: Convert to fraction form
    7,813.11/11,711.46 = 2,879.60/x
  3. Step 3: Cross multiply
    7,813.11x = 11,711.46 × 2,879.60
  4. Step 4: Simplify right side
    7,813.11x = 33,724,320.22
  5. Step 5: Solve for x
    x = 33,724,320.22/7,813.11
  6. Step 6: Final answer
    x = 4,316.38

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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.