Home / 4,182.43-6,272.56-1,986.79

Finding the Fourth Proportional to 4,182.43, 6,272.56 and 1,986.79

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Solution

The fourth proportional to 4,182.43, 6,272.56 and 1,986.79 is: 2,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,182.43 : 6,272.56 = 1,986.79 : x
  2. Step 2: Convert to fraction form
    4,182.43/6,272.56 = 1,986.79/x
  3. Step 3: Cross multiply
    4,182.43x = 6,272.56 × 1,986.79
  4. Step 4: Simplify right side
    4,182.43x = 12,462,259.48
  5. Step 5: Solve for x
    x = 12,462,259.48/4,182.43
  6. Step 6: Final answer
    x = 2,979.67

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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.