Home / 7,086.48-10,628.40-2,154.79

Finding the Fourth Proportional to 7,086.48, 10,628.40 and 2,154.79

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Solution

The fourth proportional to 7,086.48, 10,628.40 and 2,154.79 is: 3,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.48 : 10,628.40 = 2,154.79 : x
  2. Step 2: Convert to fraction form
    7,086.48/10,628.40 = 2,154.79/x
  3. Step 3: Cross multiply
    7,086.48x = 10,628.40 × 2,154.79
  4. Step 4: Simplify right side
    7,086.48x = 22,901,970.04
  5. Step 5: Solve for x
    x = 22,901,970.04/7,086.48
  6. Step 6: Final answer
    x = 3,231.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.