Home / 4,750.13-7,112.43-3,820.65

Finding the Fourth Proportional to 4,750.13, 7,112.43 and 3,820.65

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Solution

The fourth proportional to 4,750.13, 7,112.43 and 3,820.65 is: 5,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.13 : 7,112.43 = 3,820.65 : x
  2. Step 2: Convert to fraction form
    4,750.13/7,112.43 = 3,820.65/x
  3. Step 3: Cross multiply
    4,750.13x = 7,112.43 × 3,820.65
  4. Step 4: Simplify right side
    4,750.13x = 27,174,105.68
  5. Step 5: Solve for x
    x = 27,174,105.68/4,750.13
  6. Step 6: Final answer
    x = 5,720.71

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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.