Home / 7,081.65-10,623.75-2,919.34

Finding the Fourth Proportional to 7,081.65, 10,623.75 and 2,919.34

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Solution

The fourth proportional to 7,081.65, 10,623.75 and 2,919.34 is: 4,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.65 : 10,623.75 = 2,919.34 : x
  2. Step 2: Convert to fraction form
    7,081.65/10,623.75 = 2,919.34/x
  3. Step 3: Cross multiply
    7,081.65x = 10,623.75 × 2,919.34
  4. Step 4: Simplify right side
    7,081.65x = 31,014,338.33
  5. Step 5: Solve for x
    x = 31,014,338.33/7,081.65
  6. Step 6: Final answer
    x = 4,379.54

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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.