Home / 7,670.45-11,504.10-2,122.40

Finding the Fourth Proportional to 7,670.45, 11,504.10 and 2,122.40

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Solution

The fourth proportional to 7,670.45, 11,504.10 and 2,122.40 is: 3,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.45 : 11,504.10 = 2,122.40 : x
  2. Step 2: Convert to fraction form
    7,670.45/11,504.10 = 2,122.40/x
  3. Step 3: Cross multiply
    7,670.45x = 11,504.10 × 2,122.40
  4. Step 4: Simplify right side
    7,670.45x = 24,416,301.84
  5. Step 5: Solve for x
    x = 24,416,301.84/7,670.45
  6. Step 6: Final answer
    x = 3,183.16

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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.