Home / 3,378.03-4,660.25-2,118.23

Finding the Fourth Proportional to 3,378.03, 4,660.25 and 2,118.23

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Solution

The fourth proportional to 3,378.03, 4,660.25 and 2,118.23 is: 2,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.03 : 4,660.25 = 2,118.23 : x
  2. Step 2: Convert to fraction form
    3,378.03/4,660.25 = 2,118.23/x
  3. Step 3: Cross multiply
    3,378.03x = 4,660.25 × 2,118.23
  4. Step 4: Simplify right side
    3,378.03x = 9,871,447.47
  5. Step 5: Solve for x
    x = 9,871,447.47/3,378.03
  6. Step 6: Final answer
    x = 2,922.25

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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.