Home / 3,238.68-4,858.02-1,388.59

Finding the Fourth Proportional to 3,238.68, 4,858.02 and 1,388.59

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Solution

The fourth proportional to 3,238.68, 4,858.02 and 1,388.59 is: 2,082.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.68 : 4,858.02 = 1,388.59 : x
  2. Step 2: Convert to fraction form
    3,238.68/4,858.02 = 1,388.59/x
  3. Step 3: Cross multiply
    3,238.68x = 4,858.02 × 1,388.59
  4. Step 4: Simplify right side
    3,238.68x = 6,745,797.99
  5. Step 5: Solve for x
    x = 6,745,797.99/3,238.68
  6. Step 6: Final answer
    x = 2,082.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.