Home / 5,122.80-7,684.20-1,836.23

Finding the Fourth Proportional to 5,122.80, 7,684.20 and 1,836.23

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Solution

The fourth proportional to 5,122.80, 7,684.20 and 1,836.23 is: 2,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.80 : 7,684.20 = 1,836.23 : x
  2. Step 2: Convert to fraction form
    5,122.80/7,684.20 = 1,836.23/x
  3. Step 3: Cross multiply
    5,122.80x = 7,684.20 × 1,836.23
  4. Step 4: Simplify right side
    5,122.80x = 14,109,958.57
  5. Step 5: Solve for x
    x = 14,109,958.57/5,122.80
  6. Step 6: Final answer
    x = 2,754.35

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Similar ratio
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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.