Home / 7,688.25-11,531.33-3,005.00

Finding the Fourth Proportional to 7,688.25, 11,531.33 and 3,005.00

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Solution

The fourth proportional to 7,688.25, 11,531.33 and 3,005.00 is: 4,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.25 : 11,531.33 = 3,005.00 : x
  2. Step 2: Convert to fraction form
    7,688.25/11,531.33 = 3,005.00/x
  3. Step 3: Cross multiply
    7,688.25x = 11,531.33 × 3,005.00
  4. Step 4: Simplify right side
    7,688.25x = 34,651,628.48
  5. Step 5: Solve for x
    x = 34,651,628.48/7,688.25
  6. Step 6: Final answer
    x = 4,507.09

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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.