Home / 7,789.65-10,749.96-4,805.61

Finding the Fourth Proportional to 7,789.65, 10,749.96 and 4,805.61

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Solution

The fourth proportional to 7,789.65, 10,749.96 and 4,805.61 is: 6,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.65 : 10,749.96 = 4,805.61 : x
  2. Step 2: Convert to fraction form
    7,789.65/10,749.96 = 4,805.61/x
  3. Step 3: Cross multiply
    7,789.65x = 10,749.96 × 4,805.61
  4. Step 4: Simplify right side
    7,789.65x = 51,660,115.28
  5. Step 5: Solve for x
    x = 51,660,115.28/7,789.65
  6. Step 6: Final answer
    x = 6,631.89

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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.