Home / 7,945.34-11,919.36-2,750

Finding the Fourth Proportional to 7,945.34, 11,919.36 and 2,750

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Solution

The fourth proportional to 7,945.34, 11,919.36 and 2,750 is: 4,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.34 : 11,919.36 = 2,750 : x
  2. Step 2: Convert to fraction form
    7,945.34/11,919.36 = 2,750/x
  3. Step 3: Cross multiply
    7,945.34x = 11,919.36 × 2,750
  4. Step 4: Simplify right side
    7,945.34x = 32,778,240
  5. Step 5: Solve for x
    x = 32,778,240/7,945.34
  6. Step 6: Final answer
    x = 4,125.47

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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.