Home / 6,917.15-10,378.76-3,629.47

Finding the Fourth Proportional to 6,917.15, 10,378.76 and 3,629.47

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Solution

The fourth proportional to 6,917.15, 10,378.76 and 3,629.47 is: 5,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.15 : 10,378.76 = 3,629.47 : x
  2. Step 2: Convert to fraction form
    6,917.15/10,378.76 = 3,629.47/x
  3. Step 3: Cross multiply
    6,917.15x = 10,378.76 × 3,629.47
  4. Step 4: Simplify right side
    6,917.15x = 37,669,346.16
  5. Step 5: Solve for x
    x = 37,669,346.16/6,917.15
  6. Step 6: Final answer
    x = 5,445.79

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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.