Home / 7,216.50-9,958.77-4,072.62

Finding the Fourth Proportional to 7,216.50, 9,958.77 and 4,072.62

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Solution

The fourth proportional to 7,216.50, 9,958.77 and 4,072.62 is: 5,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.50 : 9,958.77 = 4,072.62 : x
  2. Step 2: Convert to fraction form
    7,216.50/9,958.77 = 4,072.62/x
  3. Step 3: Cross multiply
    7,216.50x = 9,958.77 × 4,072.62
  4. Step 4: Simplify right side
    7,216.50x = 40,558,285.88
  5. Step 5: Solve for x
    x = 40,558,285.88/7,216.50
  6. Step 6: Final answer
    x = 5,620.22

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1.5x scale

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.