Home / 3,197.63-4,409.21-2,189.51

Finding the Fourth Proportional to 3,197.63, 4,409.21 and 2,189.51

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Solution

The fourth proportional to 3,197.63, 4,409.21 and 2,189.51 is: 3,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.63 : 4,409.21 = 2,189.51 : x
  2. Step 2: Convert to fraction form
    3,197.63/4,409.21 = 2,189.51/x
  3. Step 3: Cross multiply
    3,197.63x = 4,409.21 × 2,189.51
  4. Step 4: Simplify right side
    3,197.63x = 9,654,003.19
  5. Step 5: Solve for x
    x = 9,654,003.19/3,197.63
  6. Step 6: Final answer
    x = 3,019.11

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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.