Home / 5,416.62-8,121.33-1,953.42

Finding the Fourth Proportional to 5,416.62, 8,121.33 and 1,953.42

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Solution

The fourth proportional to 5,416.62, 8,121.33 and 1,953.42 is: 2,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.62 : 8,121.33 = 1,953.42 : x
  2. Step 2: Convert to fraction form
    5,416.62/8,121.33 = 1,953.42/x
  3. Step 3: Cross multiply
    5,416.62x = 8,121.33 × 1,953.42
  4. Step 4: Simplify right side
    5,416.62x = 15,864,368.45
  5. Step 5: Solve for x
    x = 15,864,368.45/5,416.62
  6. Step 6: Final answer
    x = 2,928.83

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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.