Home / 7,170.98-10,756.94-1,905.91

Finding the Fourth Proportional to 7,170.98, 10,756.94 and 1,905.91

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Solution

The fourth proportional to 7,170.98, 10,756.94 and 1,905.91 is: 2,858.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.98 : 10,756.94 = 1,905.91 : x
  2. Step 2: Convert to fraction form
    7,170.98/10,756.94 = 1,905.91/x
  3. Step 3: Cross multiply
    7,170.98x = 10,756.94 × 1,905.91
  4. Step 4: Simplify right side
    7,170.98x = 20,501,723.09
  5. Step 5: Solve for x
    x = 20,501,723.09/7,170.98
  6. Step 6: Final answer
    x = 2,858.99

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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.