Home / 2,452.28-3,383.91-1,390.23

Finding the Fourth Proportional to 2,452.28, 3,383.91 and 1,390.23

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Solution

The fourth proportional to 2,452.28, 3,383.91 and 1,390.23 is: 1,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.28 : 3,383.91 = 1,390.23 : x
  2. Step 2: Convert to fraction form
    2,452.28/3,383.91 = 1,390.23/x
  3. Step 3: Cross multiply
    2,452.28x = 3,383.91 × 1,390.23
  4. Step 4: Simplify right side
    2,452.28x = 4,704,413.20
  5. Step 5: Solve for x
    x = 4,704,413.20/2,452.28
  6. Step 6: Final answer
    x = 1,918.39

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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.