Home / 3,900.40-5,850.24-2,439.52

Finding the Fourth Proportional to 3,900.40, 5,850.24 and 2,439.52

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Solution

The fourth proportional to 3,900.40, 5,850.24 and 2,439.52 is: 3,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.40 : 5,850.24 = 2,439.52 : x
  2. Step 2: Convert to fraction form
    3,900.40/5,850.24 = 2,439.52/x
  3. Step 3: Cross multiply
    3,900.40x = 5,850.24 × 2,439.52
  4. Step 4: Simplify right side
    3,900.40x = 14,271,777.48
  5. Step 5: Solve for x
    x = 14,271,777.48/3,900.40
  6. Step 6: Final answer
    x = 3,659.05

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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.