Home / 7,852.46-11,778.66-2,790.38

Finding the Fourth Proportional to 7,852.46, 11,778.66 and 2,790.38

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Solution

The fourth proportional to 7,852.46, 11,778.66 and 2,790.38 is: 4,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.46 : 11,778.66 = 2,790.38 : x
  2. Step 2: Convert to fraction form
    7,852.46/11,778.66 = 2,790.38/x
  3. Step 3: Cross multiply
    7,852.46x = 11,778.66 × 2,790.38
  4. Step 4: Simplify right side
    7,852.46x = 32,866,937.29
  5. Step 5: Solve for x
    x = 32,866,937.29/7,852.46
  6. Step 6: Final answer
    x = 4,185.56

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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.