Home / 2,268.08-3,131.92-1,430.28

Finding the Fourth Proportional to 2,268.08, 3,131.92 and 1,430.28

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Solution

The fourth proportional to 2,268.08, 3,131.92 and 1,430.28 is: 1,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.08 : 3,131.92 = 1,430.28 : x
  2. Step 2: Convert to fraction form
    2,268.08/3,131.92 = 1,430.28/x
  3. Step 3: Cross multiply
    2,268.08x = 3,131.92 × 1,430.28
  4. Step 4: Simplify right side
    2,268.08x = 4,479,522.54
  5. Step 5: Solve for x
    x = 4,479,522.54/2,268.08
  6. Step 6: Final answer
    x = 1,975.03

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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.