Home / 7,725.50-11,588.70-2,179.31

Finding the Fourth Proportional to 7,725.50, 11,588.70 and 2,179.31

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Solution

The fourth proportional to 7,725.50, 11,588.70 and 2,179.31 is: 3,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.50 : 11,588.70 = 2,179.31 : x
  2. Step 2: Convert to fraction form
    7,725.50/11,588.70 = 2,179.31/x
  3. Step 3: Cross multiply
    7,725.50x = 11,588.70 × 2,179.31
  4. Step 4: Simplify right side
    7,725.50x = 25,255,369.80
  5. Step 5: Solve for x
    x = 25,255,369.80/7,725.50
  6. Step 6: Final answer
    x = 3,269.09

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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.