Home / 6,628.91-9,147.67-3,975.82

Finding the Fourth Proportional to 6,628.91, 9,147.67 and 3,975.82

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Solution

The fourth proportional to 6,628.91, 9,147.67 and 3,975.82 is: 5,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.91 : 9,147.67 = 3,975.82 : x
  2. Step 2: Convert to fraction form
    6,628.91/9,147.67 = 3,975.82/x
  3. Step 3: Cross multiply
    6,628.91x = 9,147.67 × 3,975.82
  4. Step 4: Simplify right side
    6,628.91x = 36,369,456.53
  5. Step 5: Solve for x
    x = 36,369,456.53/6,628.91
  6. Step 6: Final answer
    x = 5,486.50

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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.