Home / 2,620.64-3,616.83-2,399.19

Finding the Fourth Proportional to 2,620.64, 3,616.83 and 2,399.19

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Solution

The fourth proportional to 2,620.64, 3,616.83 and 2,399.19 is: 3,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.64 : 3,616.83 = 2,399.19 : x
  2. Step 2: Convert to fraction form
    2,620.64/3,616.83 = 2,399.19/x
  3. Step 3: Cross multiply
    2,620.64x = 3,616.83 × 2,399.19
  4. Step 4: Simplify right side
    2,620.64x = 8,677,462.37
  5. Step 5: Solve for x
    x = 8,677,462.37/2,620.64
  6. Step 6: Final answer
    x = 3,311.21

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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.