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Finding the Fourth Proportional to 6,289.66, 8,679.48 and 3,495.34

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Solution

The fourth proportional to 6,289.66, 8,679.48 and 3,495.34 is: 4,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.66 : 8,679.48 = 3,495.34 : x
  2. Step 2: Convert to fraction form
    6,289.66/8,679.48 = 3,495.34/x
  3. Step 3: Cross multiply
    6,289.66x = 8,679.48 × 3,495.34
  4. Step 4: Simplify right side
    6,289.66x = 30,337,733.62
  5. Step 5: Solve for x
    x = 30,337,733.62/6,289.66
  6. Step 6: Final answer
    x = 4,823.43

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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.