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Finding the Fourth Proportional to 6,281.72, 8,668.77 and 3,487.22

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Solution

The fourth proportional to 6,281.72, 8,668.77 and 3,487.22 is: 4,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.72 : 8,668.77 = 3,487.22 : x
  2. Step 2: Convert to fraction form
    6,281.72/8,668.77 = 3,487.22/x
  3. Step 3: Cross multiply
    6,281.72x = 8,668.77 × 3,487.22
  4. Step 4: Simplify right side
    6,281.72x = 30,229,903.82
  5. Step 5: Solve for x
    x = 30,229,903.82/6,281.72
  6. Step 6: Final answer
    x = 4,812.36

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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.