Home / 3,183.60-4,389.80-2,606.90

Finding the Fourth Proportional to 3,183.60, 4,389.80 and 2,606.90

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Solution

The fourth proportional to 3,183.60, 4,389.80 and 2,606.90 is: 3,594.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.60 : 4,389.80 = 2,606.90 : x
  2. Step 2: Convert to fraction form
    3,183.60/4,389.80 = 2,606.90/x
  3. Step 3: Cross multiply
    3,183.60x = 4,389.80 × 2,606.90
  4. Step 4: Simplify right side
    3,183.60x = 11,443,769.62
  5. Step 5: Solve for x
    x = 11,443,769.62/3,183.60
  6. Step 6: Final answer
    x = 3,594.60

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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.