Home / 7,669.79-11,502.97-2,989.92

Finding the Fourth Proportional to 7,669.79, 11,502.97 and 2,989.92

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Solution

The fourth proportional to 7,669.79, 11,502.97 and 2,989.92 is: 4,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.79 : 11,502.97 = 2,989.92 : x
  2. Step 2: Convert to fraction form
    7,669.79/11,502.97 = 2,989.92/x
  3. Step 3: Cross multiply
    7,669.79x = 11,502.97 × 2,989.92
  4. Step 4: Simplify right side
    7,669.79x = 34,392,995.72
  5. Step 5: Solve for x
    x = 34,392,995.72/7,669.79
  6. Step 6: Final answer
    x = 4,484.22

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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.