Home / 5,479.68-8,211.42-2,874.72

Finding the Fourth Proportional to 5,479.68, 8,211.42 and 2,874.72

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Solution

The fourth proportional to 5,479.68, 8,211.42 and 2,874.72 is: 4,307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.68 : 8,211.42 = 2,874.72 : x
  2. Step 2: Convert to fraction form
    5,479.68/8,211.42 = 2,874.72/x
  3. Step 3: Cross multiply
    5,479.68x = 8,211.42 × 2,874.72
  4. Step 4: Simplify right side
    5,479.68x = 23,605,533.30
  5. Step 5: Solve for x
    x = 23,605,533.30/5,479.68
  6. Step 6: Final answer
    x = 4,307.83

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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.