Home / 3,289.40-4,932.30-1,339.40

Finding the Fourth Proportional to 3,289.40, 4,932.30 and 1,339.40

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Solution

The fourth proportional to 3,289.40, 4,932.30 and 1,339.40 is: 2,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.40 : 4,932.30 = 1,339.40 : x
  2. Step 2: Convert to fraction form
    3,289.40/4,932.30 = 1,339.40/x
  3. Step 3: Cross multiply
    3,289.40x = 4,932.30 × 1,339.40
  4. Step 4: Simplify right side
    3,289.40x = 6,606,322.62
  5. Step 5: Solve for x
    x = 6,606,322.62/3,289.40
  6. Step 6: Final answer
    x = 2,008.37

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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.