Home / 5,163.86-7,128.33-3,068.66

Finding the Fourth Proportional to 5,163.86, 7,128.33 and 3,068.66

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Solution

The fourth proportional to 5,163.86, 7,128.33 and 3,068.66 is: 4,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.86 : 7,128.33 = 3,068.66 : x
  2. Step 2: Convert to fraction form
    5,163.86/7,128.33 = 3,068.66/x
  3. Step 3: Cross multiply
    5,163.86x = 7,128.33 × 3,068.66
  4. Step 4: Simplify right side
    5,163.86x = 21,874,421.14
  5. Step 5: Solve for x
    x = 21,874,421.14/5,163.86
  6. Step 6: Final answer
    x = 4,236.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.