Home / 3,808.14-5,712.30-1,960.80

Finding the Fourth Proportional to 3,808.14, 5,712.30 and 1,960.80

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Solution

The fourth proportional to 3,808.14, 5,712.30 and 1,960.80 is: 2,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.14 : 5,712.30 = 1,960.80 : x
  2. Step 2: Convert to fraction form
    3,808.14/5,712.30 = 1,960.80/x
  3. Step 3: Cross multiply
    3,808.14x = 5,712.30 × 1,960.80
  4. Step 4: Simplify right side
    3,808.14x = 11,200,677.84
  5. Step 5: Solve for x
    x = 11,200,677.84/3,808.14
  6. Step 6: Final answer
    x = 2,941.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.