Home / 3,918.00-5,406.56-2,239.48

Finding the Fourth Proportional to 3,918.00, 5,406.56 and 2,239.48

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Solution

The fourth proportional to 3,918.00, 5,406.56 and 2,239.48 is: 3,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.00 : 5,406.56 = 2,239.48 : x
  2. Step 2: Convert to fraction form
    3,918.00/5,406.56 = 2,239.48/x
  3. Step 3: Cross multiply
    3,918.00x = 5,406.56 × 2,239.48
  4. Step 4: Simplify right side
    3,918.00x = 12,107,899.54
  5. Step 5: Solve for x
    x = 12,107,899.54/3,918.00
  6. Step 6: Final answer
    x = 3,090.32

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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.