Home / 3,900.36-5,380.96-2,483.68

Finding the Fourth Proportional to 3,900.36, 5,380.96 and 2,483.68

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Solution

The fourth proportional to 3,900.36, 5,380.96 and 2,483.68 is: 3,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.36 : 5,380.96 = 2,483.68 : x
  2. Step 2: Convert to fraction form
    3,900.36/5,380.96 = 2,483.68/x
  3. Step 3: Cross multiply
    3,900.36x = 5,380.96 × 2,483.68
  4. Step 4: Simplify right side
    3,900.36x = 13,364,582.73
  5. Step 5: Solve for x
    x = 13,364,582.73/3,900.36
  6. Step 6: Final answer
    x = 3,426.50

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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.