Home / 3,979.15-5,970.87-2,338.90

Finding the Fourth Proportional to 3,979.15, 5,970.87 and 2,338.90

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Solution

The fourth proportional to 3,979.15, 5,970.87 and 2,338.90 is: 3,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.15 : 5,970.87 = 2,338.90 : x
  2. Step 2: Convert to fraction form
    3,979.15/5,970.87 = 2,338.90/x
  3. Step 3: Cross multiply
    3,979.15x = 5,970.87 × 2,338.90
  4. Step 4: Simplify right side
    3,979.15x = 13,965,267.84
  5. Step 5: Solve for x
    x = 13,965,267.84/3,979.15
  6. Step 6: Final answer
    x = 3,509.61

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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.