Home / 1,984.91-2,739.15-1,100.66

Finding the Fourth Proportional to 1,984.91, 2,739.15 and 1,100.66

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Solution

The fourth proportional to 1,984.91, 2,739.15 and 1,100.66 is: 1,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.91 : 2,739.15 = 1,100.66 : x
  2. Step 2: Convert to fraction form
    1,984.91/2,739.15 = 1,100.66/x
  3. Step 3: Cross multiply
    1,984.91x = 2,739.15 × 1,100.66
  4. Step 4: Simplify right side
    1,984.91x = 3,014,859.14
  5. Step 5: Solve for x
    x = 3,014,859.14/1,984.91
  6. Step 6: Final answer
    x = 1,518.89

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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.