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Finding the Fourth Proportional to 6,118.80, 9,163.80 and 4,160.40

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Solution

The fourth proportional to 6,118.80, 9,163.80 and 4,160.40 is: 6,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.80 : 9,163.80 = 4,160.40 : x
  2. Step 2: Convert to fraction form
    6,118.80/9,163.80 = 4,160.40/x
  3. Step 3: Cross multiply
    6,118.80x = 9,163.80 × 4,160.40
  4. Step 4: Simplify right side
    6,118.80x = 38,125,073.52
  5. Step 5: Solve for x
    x = 38,125,073.52/6,118.80
  6. Step 6: Final answer
    x = 6,230.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.