Home / 6,979.40-10,469.10-4,214.60

Finding the Fourth Proportional to 6,979.40, 10,469.10 and 4,214.60

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Solution

The fourth proportional to 6,979.40, 10,469.10 and 4,214.60 is: 6,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.40 : 10,469.10 = 4,214.60 : x
  2. Step 2: Convert to fraction form
    6,979.40/10,469.10 = 4,214.60/x
  3. Step 3: Cross multiply
    6,979.40x = 10,469.10 × 4,214.60
  4. Step 4: Simplify right side
    6,979.40x = 44,123,068.86
  5. Step 5: Solve for x
    x = 44,123,068.86/6,979.40
  6. Step 6: Final answer
    x = 6,321.90

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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.