Home / 3,725.15-5,139.23-2,399.63

Finding the Fourth Proportional to 3,725.15, 5,139.23 and 2,399.63

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Solution

The fourth proportional to 3,725.15, 5,139.23 and 2,399.63 is: 3,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.15 : 5,139.23 = 2,399.63 : x
  2. Step 2: Convert to fraction form
    3,725.15/5,139.23 = 2,399.63/x
  3. Step 3: Cross multiply
    3,725.15x = 5,139.23 × 2,399.63
  4. Step 4: Simplify right side
    3,725.15x = 12,332,226.29
  5. Step 5: Solve for x
    x = 12,332,226.29/3,725.15
  6. Step 6: Final answer
    x = 3,310.53

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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.