Home / 2,478.09-3,419.77-2,268.96

Finding the Fourth Proportional to 2,478.09, 3,419.77 and 2,268.96

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Solution

The fourth proportional to 2,478.09, 3,419.77 and 2,268.96 is: 3,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.09 : 3,419.77 = 2,268.96 : x
  2. Step 2: Convert to fraction form
    2,478.09/3,419.77 = 2,268.96/x
  3. Step 3: Cross multiply
    2,478.09x = 3,419.77 × 2,268.96
  4. Step 4: Simplify right side
    2,478.09x = 7,759,326.33
  5. Step 5: Solve for x
    x = 7,759,326.33/2,478.09
  6. Step 6: Final answer
    x = 3,131.17

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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.