Home / 3,618.24-4,991.48-2,125.68

Finding the Fourth Proportional to 3,618.24, 4,991.48 and 2,125.68

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Solution

The fourth proportional to 3,618.24, 4,991.48 and 2,125.68 is: 2,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.24 : 4,991.48 = 2,125.68 : x
  2. Step 2: Convert to fraction form
    3,618.24/4,991.48 = 2,125.68/x
  3. Step 3: Cross multiply
    3,618.24x = 4,991.48 × 2,125.68
  4. Step 4: Simplify right side
    3,618.24x = 10,610,289.21
  5. Step 5: Solve for x
    x = 10,610,289.21/3,618.24
  6. Step 6: Final answer
    x = 2,932.44

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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.