Home / 2,538.75-3,503.34-1,419.75

Finding the Fourth Proportional to 2,538.75, 3,503.34 and 1,419.75

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Solution

The fourth proportional to 2,538.75, 3,503.34 and 1,419.75 is: 1,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.75 : 3,503.34 = 1,419.75 : x
  2. Step 2: Convert to fraction form
    2,538.75/3,503.34 = 1,419.75/x
  3. Step 3: Cross multiply
    2,538.75x = 3,503.34 × 1,419.75
  4. Step 4: Simplify right side
    2,538.75x = 4,973,866.97
  5. Step 5: Solve for x
    x = 4,973,866.97/2,538.75
  6. Step 6: Final answer
    x = 1,959.18

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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.