Home / 2,383.96-3,288-1,438.76

Finding the Fourth Proportional to 2,383.96, 3,288 and 1,438.76

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Solution

The fourth proportional to 2,383.96, 3,288 and 1,438.76 is: 1,984.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.96 : 3,288 = 1,438.76 : x
  2. Step 2: Convert to fraction form
    2,383.96/3,288 = 1,438.76/x
  3. Step 3: Cross multiply
    2,383.96x = 3,288 × 1,438.76
  4. Step 4: Simplify right side
    2,383.96x = 4,730,642.88
  5. Step 5: Solve for x
    x = 4,730,642.88/2,383.96
  6. Step 6: Final answer
    x = 1,984.37

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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.