Home / 3,984.14-5,976.18-1,387.07

Finding the Fourth Proportional to 3,984.14, 5,976.18 and 1,387.07

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Solution

The fourth proportional to 3,984.14, 5,976.18 and 1,387.07 is: 2,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.14 : 5,976.18 = 1,387.07 : x
  2. Step 2: Convert to fraction form
    3,984.14/5,976.18 = 1,387.07/x
  3. Step 3: Cross multiply
    3,984.14x = 5,976.18 × 1,387.07
  4. Step 4: Simplify right side
    3,984.14x = 8,289,379.99
  5. Step 5: Solve for x
    x = 8,289,379.99/3,984.14
  6. Step 6: Final answer
    x = 2,080.59

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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.