Home / 7,752.20-11,628.18-1,908.81

Finding the Fourth Proportional to 7,752.20, 11,628.18 and 1,908.81

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Solution

The fourth proportional to 7,752.20, 11,628.18 and 1,908.81 is: 2,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.20 : 11,628.18 = 1,908.81 : x
  2. Step 2: Convert to fraction form
    7,752.20/11,628.18 = 1,908.81/x
  3. Step 3: Cross multiply
    7,752.20x = 11,628.18 × 1,908.81
  4. Step 4: Simplify right side
    7,752.20x = 22,195,986.27
  5. Step 5: Solve for x
    x = 22,195,986.27/7,752.20
  6. Step 6: Final answer
    x = 2,863.19

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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.