Home / 4,101.09-5,659.69-2,309.19

Finding the Fourth Proportional to 4,101.09, 5,659.69 and 2,309.19

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Solution

The fourth proportional to 4,101.09, 5,659.69 and 2,309.19 is: 3,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.09 : 5,659.69 = 2,309.19 : x
  2. Step 2: Convert to fraction form
    4,101.09/5,659.69 = 2,309.19/x
  3. Step 3: Cross multiply
    4,101.09x = 5,659.69 × 2,309.19
  4. Step 4: Simplify right side
    4,101.09x = 13,069,305.32
  5. Step 5: Solve for x
    x = 13,069,305.32/4,101.09
  6. Step 6: Final answer
    x = 3,186.79

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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.