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Finding the Fourth Proportional to 3,039.88, 4,560.91 and 960.00

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Solution

The fourth proportional to 3,039.88, 4,560.91 and 960.00 is: 1,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.88 : 4,560.91 = 960.00 : x
  2. Step 2: Convert to fraction form
    3,039.88/4,560.91 = 960.00/x
  3. Step 3: Cross multiply
    3,039.88x = 4,560.91 × 960.00
  4. Step 4: Simplify right side
    3,039.88x = 4,378,479.75
  5. Step 5: Solve for x
    x = 4,378,479.75/3,039.88
  6. Step 6: Final answer
    x = 1,440.35

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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.