Home / 2,399.70-3,591.45-2,108.10

Finding the Fourth Proportional to 2,399.70, 3,591.45 and 2,108.10

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Solution

The fourth proportional to 2,399.70, 3,591.45 and 2,108.10 is: 3,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.70 : 3,591.45 = 2,108.10 : x
  2. Step 2: Convert to fraction form
    2,399.70/3,591.45 = 2,108.10/x
  3. Step 3: Cross multiply
    2,399.70x = 3,591.45 × 2,108.10
  4. Step 4: Simplify right side
    2,399.70x = 7,571,135.75
  5. Step 5: Solve for x
    x = 7,571,135.75/2,399.70
  6. Step 6: Final answer
    x = 3,155.03

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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.