Home / 3,993.14-5,511.36-2,399.86

Finding the Fourth Proportional to 3,993.14, 5,511.36 and 2,399.86

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Solution

The fourth proportional to 3,993.14, 5,511.36 and 2,399.86 is: 3,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.14 : 5,511.36 = 2,399.86 : x
  2. Step 2: Convert to fraction form
    3,993.14/5,511.36 = 2,399.86/x
  3. Step 3: Cross multiply
    3,993.14x = 5,511.36 × 2,399.86
  4. Step 4: Simplify right side
    3,993.14x = 13,226,492.41
  5. Step 5: Solve for x
    x = 13,226,492.41/3,993.14
  6. Step 6: Final answer
    x = 3,312.30

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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.