Home / 2,678.16-4,016.53-1,216.99

Finding the Fourth Proportional to 2,678.16, 4,016.53 and 1,216.99

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Solution

The fourth proportional to 2,678.16, 4,016.53 and 1,216.99 is: 1,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.16 : 4,016.53 = 1,216.99 : x
  2. Step 2: Convert to fraction form
    2,678.16/4,016.53 = 1,216.99/x
  3. Step 3: Cross multiply
    2,678.16x = 4,016.53 × 1,216.99
  4. Step 4: Simplify right side
    2,678.16x = 4,888,076.84
  5. Step 5: Solve for x
    x = 4,888,076.84/2,678.16
  6. Step 6: Final answer
    x = 1,825.16

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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.