Home / 2,678.54-4,013.69-1,581.73

Finding the Fourth Proportional to 2,678.54, 4,013.69 and 1,581.73

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Solution

The fourth proportional to 2,678.54, 4,013.69 and 1,581.73 is: 2,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.54 : 4,013.69 = 1,581.73 : x
  2. Step 2: Convert to fraction form
    2,678.54/4,013.69 = 1,581.73/x
  3. Step 3: Cross multiply
    2,678.54x = 4,013.69 × 1,581.73
  4. Step 4: Simplify right side
    2,678.54x = 6,348,555.94
  5. Step 5: Solve for x
    x = 6,348,555.94/2,678.54
  6. Step 6: Final answer
    x = 2,370.16

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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.