Home / 7,081.66-10,623.76-2,919.35

Finding the Fourth Proportional to 7,081.66, 10,623.76 and 2,919.35

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Solution

The fourth proportional to 7,081.66, 10,623.76 and 2,919.35 is: 4,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.66 : 10,623.76 = 2,919.35 : x
  2. Step 2: Convert to fraction form
    7,081.66/10,623.76 = 2,919.35/x
  3. Step 3: Cross multiply
    7,081.66x = 10,623.76 × 2,919.35
  4. Step 4: Simplify right side
    7,081.66x = 31,014,473.76
  5. Step 5: Solve for x
    x = 31,014,473.76/7,081.66
  6. Step 6: Final answer
    x = 4,379.55

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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.