Home / 7,789.85-10,749.99-4,805.68

Finding the Fourth Proportional to 7,789.85, 10,749.99 and 4,805.68

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Solution

The fourth proportional to 7,789.85, 10,749.99 and 4,805.68 is: 6,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.85 : 10,749.99 = 4,805.68 : x
  2. Step 2: Convert to fraction form
    7,789.85/10,749.99 = 4,805.68/x
  3. Step 3: Cross multiply
    7,789.85x = 10,749.99 × 4,805.68
  4. Step 4: Simplify right side
    7,789.85x = 51,661,009.73
  5. Step 5: Solve for x
    x = 51,661,009.73/7,789.85
  6. Step 6: Final answer
    x = 6,631.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.