Home / 2,538.68-3,503.26-1,419.40

Finding the Fourth Proportional to 2,538.68, 3,503.26 and 1,419.40

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Solution

The fourth proportional to 2,538.68, 3,503.26 and 1,419.40 is: 1,958.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.68 : 3,503.26 = 1,419.40 : x
  2. Step 2: Convert to fraction form
    2,538.68/3,503.26 = 1,419.40/x
  3. Step 3: Cross multiply
    2,538.68x = 3,503.26 × 1,419.40
  4. Step 4: Simplify right side
    2,538.68x = 4,972,525.54
  5. Step 5: Solve for x
    x = 4,972,525.54/2,538.68
  6. Step 6: Final answer
    x = 1,958.71

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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.