Home / 6,179.40-9,269.37-3,989.70

Finding the Fourth Proportional to 6,179.40, 9,269.37 and 3,989.70

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Solution

The fourth proportional to 6,179.40, 9,269.37 and 3,989.70 is: 5,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,179.40 : 9,269.37 = 3,989.70 : x
  2. Step 2: Convert to fraction form
    6,179.40/9,269.37 = 3,989.70/x
  3. Step 3: Cross multiply
    6,179.40x = 9,269.37 × 3,989.70
  4. Step 4: Simplify right side
    6,179.40x = 36,982,005.49
  5. Step 5: Solve for x
    x = 36,982,005.49/6,179.40
  6. Step 6: Final answer
    x = 5,984.72

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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.