Home / 5,709.87-8,560.53-2,420.85

Finding the Fourth Proportional to 5,709.87, 8,560.53 and 2,420.85

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Solution

The fourth proportional to 5,709.87, 8,560.53 and 2,420.85 is: 3,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.87 : 8,560.53 = 2,420.85 : x
  2. Step 2: Convert to fraction form
    5,709.87/8,560.53 = 2,420.85/x
  3. Step 3: Cross multiply
    5,709.87x = 8,560.53 × 2,420.85
  4. Step 4: Simplify right side
    5,709.87x = 20,723,759.05
  5. Step 5: Solve for x
    x = 20,723,759.05/5,709.87
  6. Step 6: Final answer
    x = 3,629.46

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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.