Home / 3,289.36-4,934.60-1,440.40

Finding the Fourth Proportional to 3,289.36, 4,934.60 and 1,440.40

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Solution

The fourth proportional to 3,289.36, 4,934.60 and 1,440.40 is: 2,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.36 : 4,934.60 = 1,440.40 : x
  2. Step 2: Convert to fraction form
    3,289.36/4,934.60 = 1,440.40/x
  3. Step 3: Cross multiply
    3,289.36x = 4,934.60 × 1,440.40
  4. Step 4: Simplify right side
    3,289.36x = 7,107,797.84
  5. Step 5: Solve for x
    x = 7,107,797.84/3,289.36
  6. Step 6: Final answer
    x = 2,160.85

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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.