Home / 4,205.80-6,272.69-4,119.40

Finding the Fourth Proportional to 4,205.80, 6,272.69 and 4,119.40

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Solution

The fourth proportional to 4,205.80, 6,272.69 and 4,119.40 is: 6,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,205.80 : 6,272.69 = 4,119.40 : x
  2. Step 2: Convert to fraction form
    4,205.80/6,272.69 = 4,119.40/x
  3. Step 3: Cross multiply
    4,205.80x = 6,272.69 × 4,119.40
  4. Step 4: Simplify right side
    4,205.80x = 25,839,719.19
  5. Step 5: Solve for x
    x = 25,839,719.19/4,205.80
  6. Step 6: Final answer
    x = 6,143.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.