Home / 7,638.84-11,457.42-2,092.68

Finding the Fourth Proportional to 7,638.84, 11,457.42 and 2,092.68

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Solution

The fourth proportional to 7,638.84, 11,457.42 and 2,092.68 is: 3,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.84 : 11,457.42 = 2,092.68 : x
  2. Step 2: Convert to fraction form
    7,638.84/11,457.42 = 2,092.68/x
  3. Step 3: Cross multiply
    7,638.84x = 11,457.42 × 2,092.68
  4. Step 4: Simplify right side
    7,638.84x = 23,976,713.69
  5. Step 5: Solve for x
    x = 23,976,713.69/7,638.84
  6. Step 6: Final answer
    x = 3,138.79

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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.