Home / 5,106.24-7,659.83-1,986.48

Finding the Fourth Proportional to 5,106.24, 7,659.83 and 1,986.48

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Solution

The fourth proportional to 5,106.24, 7,659.83 and 1,986.48 is: 2,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.24 : 7,659.83 = 1,986.48 : x
  2. Step 2: Convert to fraction form
    5,106.24/7,659.83 = 1,986.48/x
  3. Step 3: Cross multiply
    5,106.24x = 7,659.83 × 1,986.48
  4. Step 4: Simplify right side
    5,106.24x = 15,216,060.44
  5. Step 5: Solve for x
    x = 15,216,060.44/5,106.24
  6. Step 6: Final answer
    x = 2,979.90

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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.