Home / 7,789.89-11,686.62-2,243.28

Finding the Fourth Proportional to 7,789.89, 11,686.62 and 2,243.28

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Solution

The fourth proportional to 7,789.89, 11,686.62 and 2,243.28 is: 3,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.89 : 11,686.62 = 2,243.28 : x
  2. Step 2: Convert to fraction form
    7,789.89/11,686.62 = 2,243.28/x
  3. Step 3: Cross multiply
    7,789.89x = 11,686.62 × 2,243.28
  4. Step 4: Simplify right side
    7,789.89x = 26,216,360.91
  5. Step 5: Solve for x
    x = 26,216,360.91/7,789.89
  6. Step 6: Final answer
    x = 3,365.43

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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.