Home / 3,923.58-5,409.09-2,662.68

Finding the Fourth Proportional to 3,923.58, 5,409.09 and 2,662.68

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Solution

The fourth proportional to 3,923.58, 5,409.09 and 2,662.68 is: 3,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.58 : 5,409.09 = 2,662.68 : x
  2. Step 2: Convert to fraction form
    3,923.58/5,409.09 = 2,662.68/x
  3. Step 3: Cross multiply
    3,923.58x = 5,409.09 × 2,662.68
  4. Step 4: Simplify right side
    3,923.58x = 14,402,675.76
  5. Step 5: Solve for x
    x = 14,402,675.76/3,923.58
  6. Step 6: Final answer
    x = 3,670.80

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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.