Home / 3,145.32-4,332.96-2,650.68

Finding the Fourth Proportional to 3,145.32, 4,332.96 and 2,650.68

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Solution

The fourth proportional to 3,145.32, 4,332.96 and 2,650.68 is: 3,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.32 : 4,332.96 = 2,650.68 : x
  2. Step 2: Convert to fraction form
    3,145.32/4,332.96 = 2,650.68/x
  3. Step 3: Cross multiply
    3,145.32x = 4,332.96 × 2,650.68
  4. Step 4: Simplify right side
    3,145.32x = 11,485,290.41
  5. Step 5: Solve for x
    x = 11,485,290.41/3,145.32
  6. Step 6: Final answer
    x = 3,651.55

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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.