Home / 7,317.82-10,977.03-2,123.70

Finding the Fourth Proportional to 7,317.82, 10,977.03 and 2,123.70

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Solution

The fourth proportional to 7,317.82, 10,977.03 and 2,123.70 is: 3,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.82 : 10,977.03 = 2,123.70 : x
  2. Step 2: Convert to fraction form
    7,317.82/10,977.03 = 2,123.70/x
  3. Step 3: Cross multiply
    7,317.82x = 10,977.03 × 2,123.70
  4. Step 4: Simplify right side
    7,317.82x = 23,311,918.61
  5. Step 5: Solve for x
    x = 23,311,918.61/7,317.82
  6. Step 6: Final answer
    x = 3,185.64

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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.