Home / 3,980.18-5,491.15-2,467.05

Finding the Fourth Proportional to 3,980.18, 5,491.15 and 2,467.05

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Solution

The fourth proportional to 3,980.18, 5,491.15 and 2,467.05 is: 3,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.18 : 5,491.15 = 2,467.05 : x
  2. Step 2: Convert to fraction form
    3,980.18/5,491.15 = 2,467.05/x
  3. Step 3: Cross multiply
    3,980.18x = 5,491.15 × 2,467.05
  4. Step 4: Simplify right side
    3,980.18x = 13,546,914.85
  5. Step 5: Solve for x
    x = 13,546,914.85/3,980.18
  6. Step 6: Final answer
    x = 3,403.60

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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.