Home / 5,478.72-8,226.28-4,379.84

Finding the Fourth Proportional to 5,478.72, 8,226.28 and 4,379.84

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Solution

The fourth proportional to 5,478.72, 8,226.28 and 4,379.84 is: 6,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.72 : 8,226.28 = 4,379.84 : x
  2. Step 2: Convert to fraction form
    5,478.72/8,226.28 = 4,379.84/x
  3. Step 3: Cross multiply
    5,478.72x = 8,226.28 × 4,379.84
  4. Step 4: Simplify right side
    5,478.72x = 36,029,790.20
  5. Step 5: Solve for x
    x = 36,029,790.20/5,478.72
  6. Step 6: Final answer
    x = 6,576.32

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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.