Home / 7,511.21-11,260.74-3,131.94

Finding the Fourth Proportional to 7,511.21, 11,260.74 and 3,131.94

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Solution

The fourth proportional to 7,511.21, 11,260.74 and 3,131.94 is: 4,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.21 : 11,260.74 = 3,131.94 : x
  2. Step 2: Convert to fraction form
    7,511.21/11,260.74 = 3,131.94/x
  3. Step 3: Cross multiply
    7,511.21x = 11,260.74 × 3,131.94
  4. Step 4: Simplify right side
    7,511.21x = 35,267,998.39
  5. Step 5: Solve for x
    x = 35,267,998.39/7,511.21
  6. Step 6: Final answer
    x = 4,695.38

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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.