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Finding the Fourth Proportional to 7,779.46, 11,669.23 and 2,849.46

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Solution

The fourth proportional to 7,779.46, 11,669.23 and 2,849.46 is: 4,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.46 : 11,669.23 = 2,849.46 : x
  2. Step 2: Convert to fraction form
    7,779.46/11,669.23 = 2,849.46/x
  3. Step 3: Cross multiply
    7,779.46x = 11,669.23 × 2,849.46
  4. Step 4: Simplify right side
    7,779.46x = 33,251,004.12
  5. Step 5: Solve for x
    x = 33,251,004.12/7,779.46
  6. Step 6: Final answer
    x = 4,274.20

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Similar ratio
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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.