Home / 5,725.79-8,589.14-1,830.20

Finding the Fourth Proportional to 5,725.79, 8,589.14 and 1,830.20

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Solution

The fourth proportional to 5,725.79, 8,589.14 and 1,830.20 is: 2,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.79 : 8,589.14 = 1,830.20 : x
  2. Step 2: Convert to fraction form
    5,725.79/8,589.14 = 1,830.20/x
  3. Step 3: Cross multiply
    5,725.79x = 8,589.14 × 1,830.20
  4. Step 4: Simplify right side
    5,725.79x = 15,719,791.93
  5. Step 5: Solve for x
    x = 15,719,791.93/5,725.79
  6. Step 6: Final answer
    x = 2,745.44

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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.