Home / 4,725.14-7,088.43-2,128.82

Finding the Fourth Proportional to 4,725.14, 7,088.43 and 2,128.82

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Solution

The fourth proportional to 4,725.14, 7,088.43 and 2,128.82 is: 3,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.14 : 7,088.43 = 2,128.82 : x
  2. Step 2: Convert to fraction form
    4,725.14/7,088.43 = 2,128.82/x
  3. Step 3: Cross multiply
    4,725.14x = 7,088.43 × 2,128.82
  4. Step 4: Simplify right side
    4,725.14x = 15,089,991.55
  5. Step 5: Solve for x
    x = 15,089,991.55/4,725.14
  6. Step 6: Final answer
    x = 3,193.55

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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.