Home / 7,081.67-10,623.77-2,919.36

Finding the Fourth Proportional to 7,081.67, 10,623.77 and 2,919.36

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Solution

The fourth proportional to 7,081.67, 10,623.77 and 2,919.36 is: 4,379.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.67 : 10,623.77 = 2,919.36 : x
  2. Step 2: Convert to fraction form
    7,081.67/10,623.77 = 2,919.36/x
  3. Step 3: Cross multiply
    7,081.67x = 10,623.77 × 2,919.36
  4. Step 4: Simplify right side
    7,081.67x = 31,014,594.59
  5. Step 5: Solve for x
    x = 31,014,594.59/7,081.67
  6. Step 6: Final answer
    x = 4,379.56

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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.