Home / 3,948.45-5,448.63-2,268.68

Finding the Fourth Proportional to 3,948.45, 5,448.63 and 2,268.68

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Solution

The fourth proportional to 3,948.45, 5,448.63 and 2,268.68 is: 3,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.45 : 5,448.63 = 2,268.68 : x
  2. Step 2: Convert to fraction form
    3,948.45/5,448.63 = 2,268.68/x
  3. Step 3: Cross multiply
    3,948.45x = 5,448.63 × 2,268.68
  4. Step 4: Simplify right side
    3,948.45x = 12,361,197.91
  5. Step 5: Solve for x
    x = 12,361,197.91/3,948.45
  6. Step 6: Final answer
    x = 3,130.65

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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.