Home / 3,191.48-4,406.38-2,854.33

Finding the Fourth Proportional to 3,191.48, 4,406.38 and 2,854.33

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Solution

The fourth proportional to 3,191.48, 4,406.38 and 2,854.33 is: 3,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.48 : 4,406.38 = 2,854.33 : x
  2. Step 2: Convert to fraction form
    3,191.48/4,406.38 = 2,854.33/x
  3. Step 3: Cross multiply
    3,191.48x = 4,406.38 × 2,854.33
  4. Step 4: Simplify right side
    3,191.48x = 12,577,262.63
  5. Step 5: Solve for x
    x = 12,577,262.63/3,191.48
  6. Step 6: Final answer
    x = 3,940.89

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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.