Home / 7,638.44-11,457.65-2,091.83

Finding the Fourth Proportional to 7,638.44, 11,457.65 and 2,091.83

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Solution

The fourth proportional to 7,638.44, 11,457.65 and 2,091.83 is: 3,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.44 : 11,457.65 = 2,091.83 : x
  2. Step 2: Convert to fraction form
    7,638.44/11,457.65 = 2,091.83/x
  3. Step 3: Cross multiply
    7,638.44x = 11,457.65 × 2,091.83
  4. Step 4: Simplify right side
    7,638.44x = 23,967,456.00
  5. Step 5: Solve for x
    x = 23,967,456.00/7,638.44
  6. Step 6: Final answer
    x = 3,137.74

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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.