Home / 8,080.40-12,120.81-2,237.06

Finding the Fourth Proportional to 8,080.40, 12,120.81 and 2,237.06

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Solution

The fourth proportional to 8,080.40, 12,120.81 and 2,237.06 is: 3,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.40 : 12,120.81 = 2,237.06 : x
  2. Step 2: Convert to fraction form
    8,080.40/12,120.81 = 2,237.06/x
  3. Step 3: Cross multiply
    8,080.40x = 12,120.81 × 2,237.06
  4. Step 4: Simplify right side
    8,080.40x = 27,114,907.43
  5. Step 5: Solve for x
    x = 27,114,907.43/8,080.40
  6. Step 6: Final answer
    x = 3,355.64

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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.