Home / 3,581.35-4,940.80-2,402.80

Finding the Fourth Proportional to 3,581.35, 4,940.80 and 2,402.80

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Solution

The fourth proportional to 3,581.35, 4,940.80 and 2,402.80 is: 3,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.35 : 4,940.80 = 2,402.80 : x
  2. Step 2: Convert to fraction form
    3,581.35/4,940.80 = 2,402.80/x
  3. Step 3: Cross multiply
    3,581.35x = 4,940.80 × 2,402.80
  4. Step 4: Simplify right side
    3,581.35x = 11,871,754.24
  5. Step 5: Solve for x
    x = 11,871,754.24/3,581.35
  6. Step 6: Final answer
    x = 3,314.88

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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.