Home / 7,314.48-10,972.44-2,121.12

Finding the Fourth Proportional to 7,314.48, 10,972.44 and 2,121.12

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Solution

The fourth proportional to 7,314.48, 10,972.44 and 2,121.12 is: 3,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,314.48 : 10,972.44 = 2,121.12 : x
  2. Step 2: Convert to fraction form
    7,314.48/10,972.44 = 2,121.12/x
  3. Step 3: Cross multiply
    7,314.48x = 10,972.44 × 2,121.12
  4. Step 4: Simplify right side
    7,314.48x = 23,273,861.93
  5. Step 5: Solve for x
    x = 23,273,861.93/7,314.48
  6. Step 6: Final answer
    x = 3,181.89

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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.