Home / 2,016.90-2,783.14-1,230.79

Finding the Fourth Proportional to 2,016.90, 2,783.14 and 1,230.79

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Solution

The fourth proportional to 2,016.90, 2,783.14 and 1,230.79 is: 1,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.90 : 2,783.14 = 1,230.79 : x
  2. Step 2: Convert to fraction form
    2,016.90/2,783.14 = 1,230.79/x
  3. Step 3: Cross multiply
    2,016.90x = 2,783.14 × 1,230.79
  4. Step 4: Simplify right side
    2,016.90x = 3,425,460.88
  5. Step 5: Solve for x
    x = 3,425,460.88/2,016.90
  6. Step 6: Final answer
    x = 1,698.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.