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Finding the Fourth Proportional to 3,013.98, 4,520.01 and 961.50

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Solution

The fourth proportional to 3,013.98, 4,520.01 and 961.50 is: 1,441.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.98 : 4,520.01 = 961.50 : x
  2. Step 2: Convert to fraction form
    3,013.98/4,520.01 = 961.50/x
  3. Step 3: Cross multiply
    3,013.98x = 4,520.01 × 961.50
  4. Step 4: Simplify right side
    3,013.98x = 4,345,989.62
  5. Step 5: Solve for x
    x = 4,345,989.62/3,013.98
  6. Step 6: Final answer
    x = 1,441.94

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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.