Home / 7,823.78-11,735.46-2,278.65

Finding the Fourth Proportional to 7,823.78, 11,735.46 and 2,278.65

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Solution

The fourth proportional to 7,823.78, 11,735.46 and 2,278.65 is: 3,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.78 : 11,735.46 = 2,278.65 : x
  2. Step 2: Convert to fraction form
    7,823.78/11,735.46 = 2,278.65/x
  3. Step 3: Cross multiply
    7,823.78x = 11,735.46 × 2,278.65
  4. Step 4: Simplify right side
    7,823.78x = 26,741,005.93
  5. Step 5: Solve for x
    x = 26,741,005.93/7,823.78
  6. Step 6: Final answer
    x = 3,417.91

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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.