Home / 2,148.41-3,222.67-1,785.73

Finding the Fourth Proportional to 2,148.41, 3,222.67 and 1,785.73

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Solution

The fourth proportional to 2,148.41, 3,222.67 and 1,785.73 is: 2,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.41 : 3,222.67 = 1,785.73 : x
  2. Step 2: Convert to fraction form
    2,148.41/3,222.67 = 1,785.73/x
  3. Step 3: Cross multiply
    2,148.41x = 3,222.67 × 1,785.73
  4. Step 4: Simplify right side
    2,148.41x = 5,754,818.50
  5. Step 5: Solve for x
    x = 5,754,818.50/2,148.41
  6. Step 6: Final answer
    x = 2,678.64

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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.