Home / 6,280.79-8,668.31-3,628.22

Finding the Fourth Proportional to 6,280.79, 8,668.31 and 3,628.22

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Solution

The fourth proportional to 6,280.79, 8,668.31 and 3,628.22 is: 5,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.79 : 8,668.31 = 3,628.22 : x
  2. Step 2: Convert to fraction form
    6,280.79/8,668.31 = 3,628.22/x
  3. Step 3: Cross multiply
    6,280.79x = 8,668.31 × 3,628.22
  4. Step 4: Simplify right side
    6,280.79x = 31,450,474.23
  5. Step 5: Solve for x
    x = 31,450,474.23/6,280.79
  6. Step 6: Final answer
    x = 5,007.41

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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.