Home / 7,080.80-10,621.15-2,150.42

Finding the Fourth Proportional to 7,080.80, 10,621.15 and 2,150.42

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Solution

The fourth proportional to 7,080.80, 10,621.15 and 2,150.42 is: 3,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.80 : 10,621.15 = 2,150.42 : x
  2. Step 2: Convert to fraction form
    7,080.80/10,621.15 = 2,150.42/x
  3. Step 3: Cross multiply
    7,080.80x = 10,621.15 × 2,150.42
  4. Step 4: Simplify right side
    7,080.80x = 22,839,874.90
  5. Step 5: Solve for x
    x = 22,839,874.90/7,080.80
  6. Step 6: Final answer
    x = 3,225.61

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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.