Home / 5,121.83-7,684.27-2,160.57

Finding the Fourth Proportional to 5,121.83, 7,684.27 and 2,160.57

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Solution

The fourth proportional to 5,121.83, 7,684.27 and 2,160.57 is: 3,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.83 : 7,684.27 = 2,160.57 : x
  2. Step 2: Convert to fraction form
    5,121.83/7,684.27 = 2,160.57/x
  3. Step 3: Cross multiply
    5,121.83x = 7,684.27 × 2,160.57
  4. Step 4: Simplify right side
    5,121.83x = 16,602,426.65
  5. Step 5: Solve for x
    x = 16,602,426.65/5,121.83
  6. Step 6: Final answer
    x = 3,241.50

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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.