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Finding the Fourth Proportional to 4,334.40, 5,978.88 and 3,073.68

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Solution

The fourth proportional to 4,334.40, 5,978.88 and 3,073.68 is: 4,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,334.40 : 5,978.88 = 3,073.68 : x
  2. Step 2: Convert to fraction form
    4,334.40/5,978.88 = 3,073.68/x
  3. Step 3: Cross multiply
    4,334.40x = 5,978.88 × 3,073.68
  4. Step 4: Simplify right side
    4,334.40x = 18,377,163.88
  5. Step 5: Solve for x
    x = 18,377,163.88/4,334.40
  6. Step 6: Final answer
    x = 4,239.84

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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.