Home / 7,858.42-11,786.31-2,926.73

Finding the Fourth Proportional to 7,858.42, 11,786.31 and 2,926.73

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Solution

The fourth proportional to 7,858.42, 11,786.31 and 2,926.73 is: 4,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.42 : 11,786.31 = 2,926.73 : x
  2. Step 2: Convert to fraction form
    7,858.42/11,786.31 = 2,926.73/x
  3. Step 3: Cross multiply
    7,858.42x = 11,786.31 × 2,926.73
  4. Step 4: Simplify right side
    7,858.42x = 34,495,376.53
  5. Step 5: Solve for x
    x = 34,495,376.53/7,858.42
  6. Step 6: Final answer
    x = 4,389.61

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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.