Home / 5,828.28-8,740.68-2,129.65

Finding the Fourth Proportional to 5,828.28, 8,740.68 and 2,129.65

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Solution

The fourth proportional to 5,828.28, 8,740.68 and 2,129.65 is: 3,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,828.28 : 8,740.68 = 2,129.65 : x
  2. Step 2: Convert to fraction form
    5,828.28/8,740.68 = 2,129.65/x
  3. Step 3: Cross multiply
    5,828.28x = 8,740.68 × 2,129.65
  4. Step 4: Simplify right side
    5,828.28x = 18,614,604.08
  5. Step 5: Solve for x
    x = 18,614,604.08/5,828.28
  6. Step 6: Final answer
    x = 3,193.84

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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.