Home / 4,160.80-6,242.28-2,080.72

Finding the Fourth Proportional to 4,160.80, 6,242.28 and 2,080.72

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Solution

The fourth proportional to 4,160.80, 6,242.28 and 2,080.72 is: 3,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.80 : 6,242.28 = 2,080.72 : x
  2. Step 2: Convert to fraction form
    4,160.80/6,242.28 = 2,080.72/x
  3. Step 3: Cross multiply
    4,160.80x = 6,242.28 × 2,080.72
  4. Step 4: Simplify right side
    4,160.80x = 12,988,395.23
  5. Step 5: Solve for x
    x = 12,988,395.23/4,160.80
  6. Step 6: Final answer
    x = 3,121.61

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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.