Home / 3,945.09-5,917.63-2,214.93

Finding the Fourth Proportional to 3,945.09, 5,917.63 and 2,214.93

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Solution

The fourth proportional to 3,945.09, 5,917.63 and 2,214.93 is: 3,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.09 : 5,917.63 = 2,214.93 : x
  2. Step 2: Convert to fraction form
    3,945.09/5,917.63 = 2,214.93/x
  3. Step 3: Cross multiply
    3,945.09x = 5,917.63 × 2,214.93
  4. Step 4: Simplify right side
    3,945.09x = 13,107,136.22
  5. Step 5: Solve for x
    x = 13,107,136.22/3,945.09
  6. Step 6: Final answer
    x = 3,322.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.