Home / 7,789.28-11,685.70-2,242.66

Finding the Fourth Proportional to 7,789.28, 11,685.70 and 2,242.66

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Solution

The fourth proportional to 7,789.28, 11,685.70 and 2,242.66 is: 3,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.28 : 11,685.70 = 2,242.66 : x
  2. Step 2: Convert to fraction form
    7,789.28/11,685.70 = 2,242.66/x
  3. Step 3: Cross multiply
    7,789.28x = 11,685.70 × 2,242.66
  4. Step 4: Simplify right side
    7,789.28x = 26,207,051.96
  5. Step 5: Solve for x
    x = 26,207,051.96/7,789.28
  6. Step 6: Final answer
    x = 3,364.50

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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.