Home / 3,903.99-5,388.44-2,645.84

Finding the Fourth Proportional to 3,903.99, 5,388.44 and 2,645.84

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Solution

The fourth proportional to 3,903.99, 5,388.44 and 2,645.84 is: 3,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.99 : 5,388.44 = 2,645.84 : x
  2. Step 2: Convert to fraction form
    3,903.99/5,388.44 = 2,645.84/x
  3. Step 3: Cross multiply
    3,903.99x = 5,388.44 × 2,645.84
  4. Step 4: Simplify right side
    3,903.99x = 14,256,909.92
  5. Step 5: Solve for x
    x = 14,256,909.92/3,903.99
  6. Step 6: Final answer
    x = 3,651.88

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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.