Home / 3,383.15-4,668.75-1,891.07

Finding the Fourth Proportional to 3,383.15, 4,668.75 and 1,891.07

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Solution

The fourth proportional to 3,383.15, 4,668.75 and 1,891.07 is: 2,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.15 : 4,668.75 = 1,891.07 : x
  2. Step 2: Convert to fraction form
    3,383.15/4,668.75 = 1,891.07/x
  3. Step 3: Cross multiply
    3,383.15x = 4,668.75 × 1,891.07
  4. Step 4: Simplify right side
    3,383.15x = 8,828,909.72
  5. Step 5: Solve for x
    x = 8,828,909.72/3,383.15
  6. Step 6: Final answer
    x = 2,609.68

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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.