Home / 5,765.20-8,658.72-3,589.12

Finding the Fourth Proportional to 5,765.20, 8,658.72 and 3,589.12

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Solution

The fourth proportional to 5,765.20, 8,658.72 and 3,589.12 is: 5,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.20 : 8,658.72 = 3,589.12 : x
  2. Step 2: Convert to fraction form
    5,765.20/8,658.72 = 3,589.12/x
  3. Step 3: Cross multiply
    5,765.20x = 8,658.72 × 3,589.12
  4. Step 4: Simplify right side
    5,765.20x = 31,077,185.13
  5. Step 5: Solve for x
    x = 31,077,185.13/5,765.20
  6. Step 6: Final answer
    x = 5,390.48

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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.