Home / 2,287.51-3,428.96-2,119.75

Finding the Fourth Proportional to 2,287.51, 3,428.96 and 2,119.75

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Solution

The fourth proportional to 2,287.51, 3,428.96 and 2,119.75 is: 3,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.51 : 3,428.96 = 2,119.75 : x
  2. Step 2: Convert to fraction form
    2,287.51/3,428.96 = 2,119.75/x
  3. Step 3: Cross multiply
    2,287.51x = 3,428.96 × 2,119.75
  4. Step 4: Simplify right side
    2,287.51x = 7,268,518.79
  5. Step 5: Solve for x
    x = 7,268,518.79/2,287.51
  6. Step 6: Final answer
    x = 3,177.48

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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.