Home / 2,678.46-4,016.13-1,117.99

Finding the Fourth Proportional to 2,678.46, 4,016.13 and 1,117.99

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Solution

The fourth proportional to 2,678.46, 4,016.13 and 1,117.99 is: 1,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.46 : 4,016.13 = 1,117.99 : x
  2. Step 2: Convert to fraction form
    2,678.46/4,016.13 = 1,117.99/x
  3. Step 3: Cross multiply
    2,678.46x = 4,016.13 × 1,117.99
  4. Step 4: Simplify right side
    2,678.46x = 4,489,993.18
  5. Step 5: Solve for x
    x = 4,489,993.18/2,678.46
  6. Step 6: Final answer
    x = 1,676.33

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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.