Home / 5,629.35-8,439.24-3,439.61

Finding the Fourth Proportional to 5,629.35, 8,439.24 and 3,439.61

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Solution

The fourth proportional to 5,629.35, 8,439.24 and 3,439.61 is: 5,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.35 : 8,439.24 = 3,439.61 : x
  2. Step 2: Convert to fraction form
    5,629.35/8,439.24 = 3,439.61/x
  3. Step 3: Cross multiply
    5,629.35x = 8,439.24 × 3,439.61
  4. Step 4: Simplify right side
    5,629.35x = 29,027,724.77
  5. Step 5: Solve for x
    x = 29,027,724.77/5,629.35
  6. Step 6: Final answer
    x = 5,156.50

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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.