Home / 3,260.40-4,496.32-2,181.76

Finding the Fourth Proportional to 3,260.40, 4,496.32 and 2,181.76

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Solution

The fourth proportional to 3,260.40, 4,496.32 and 2,181.76 is: 3,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.40 : 4,496.32 = 2,181.76 : x
  2. Step 2: Convert to fraction form
    3,260.40/4,496.32 = 2,181.76/x
  3. Step 3: Cross multiply
    3,260.40x = 4,496.32 × 2,181.76
  4. Step 4: Simplify right side
    3,260.40x = 9,809,891.12
  5. Step 5: Solve for x
    x = 9,809,891.12/3,260.40
  6. Step 6: Final answer
    x = 3,008.80

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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.