Home / 2,318.73-3,495.41-2,121.69

Finding the Fourth Proportional to 2,318.73, 3,495.41 and 2,121.69

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Solution

The fourth proportional to 2,318.73, 3,495.41 and 2,121.69 is: 3,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.73 : 3,495.41 = 2,121.69 : x
  2. Step 2: Convert to fraction form
    2,318.73/3,495.41 = 2,121.69/x
  3. Step 3: Cross multiply
    2,318.73x = 3,495.41 × 2,121.69
  4. Step 4: Simplify right side
    2,318.73x = 7,416,186.90
  5. Step 5: Solve for x
    x = 7,416,186.90/2,318.73
  6. Step 6: Final answer
    x = 3,198.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.