Home / 2,621.39-3,617.87-2,399.94

Finding the Fourth Proportional to 2,621.39, 3,617.87 and 2,399.94

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Solution

The fourth proportional to 2,621.39, 3,617.87 and 2,399.94 is: 3,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.39 : 3,617.87 = 2,399.94 : x
  2. Step 2: Convert to fraction form
    2,621.39/3,617.87 = 2,399.94/x
  3. Step 3: Cross multiply
    2,621.39x = 3,617.87 × 2,399.94
  4. Step 4: Simplify right side
    2,621.39x = 8,682,658.93
  5. Step 5: Solve for x
    x = 8,682,658.93/2,621.39
  6. Step 6: Final answer
    x = 3,312.24

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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.