Home / 4,742.33-7,112.91-2,109.89

Finding the Fourth Proportional to 4,742.33, 7,112.91 and 2,109.89

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Solution

The fourth proportional to 4,742.33, 7,112.91 and 2,109.89 is: 3,164.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.33 : 7,112.91 = 2,109.89 : x
  2. Step 2: Convert to fraction form
    4,742.33/7,112.91 = 2,109.89/x
  3. Step 3: Cross multiply
    4,742.33x = 7,112.91 × 2,109.89
  4. Step 4: Simplify right side
    4,742.33x = 15,007,457.68
  5. Step 5: Solve for x
    x = 15,007,457.68/4,742.33
  6. Step 6: Final answer
    x = 3,164.57

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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.