Home / 6,122.60-9,183.90-4,279.40

Finding the Fourth Proportional to 6,122.60, 9,183.90 and 4,279.40

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Solution

The fourth proportional to 6,122.60, 9,183.90 and 4,279.40 is: 6,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.60 : 9,183.90 = 4,279.40 : x
  2. Step 2: Convert to fraction form
    6,122.60/9,183.90 = 4,279.40/x
  3. Step 3: Cross multiply
    6,122.60x = 9,183.90 × 4,279.40
  4. Step 4: Simplify right side
    6,122.60x = 39,301,581.66
  5. Step 5: Solve for x
    x = 39,301,581.66/6,122.60
  6. Step 6: Final answer
    x = 6,419.10

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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.