Home / 3,847.52-5,768.40-2,087.84

Finding the Fourth Proportional to 3,847.52, 5,768.40 and 2,087.84

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Solution

The fourth proportional to 3,847.52, 5,768.40 and 2,087.84 is: 3,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.52 : 5,768.40 = 2,087.84 : x
  2. Step 2: Convert to fraction form
    3,847.52/5,768.40 = 2,087.84/x
  3. Step 3: Cross multiply
    3,847.52x = 5,768.40 × 2,087.84
  4. Step 4: Simplify right side
    3,847.52x = 12,043,496.26
  5. Step 5: Solve for x
    x = 12,043,496.26/3,847.52
  6. Step 6: Final answer
    x = 3,130.20

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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.