Home / 3,993.86-5,511.26-2,400.77

Finding the Fourth Proportional to 3,993.86, 5,511.26 and 2,400.77

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Solution

The fourth proportional to 3,993.86, 5,511.26 and 2,400.77 is: 3,312.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.86 : 5,511.26 = 2,400.77 : x
  2. Step 2: Convert to fraction form
    3,993.86/5,511.26 = 2,400.77/x
  3. Step 3: Cross multiply
    3,993.86x = 5,511.26 × 2,400.77
  4. Step 4: Simplify right side
    3,993.86x = 13,231,287.45
  5. Step 5: Solve for x
    x = 13,231,287.45/3,993.86
  6. Step 6: Final answer
    x = 3,312.91

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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.