Home / 5,311.08-7,926.45-5,172.84

Finding the Fourth Proportional to 5,311.08, 7,926.45 and 5,172.84

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Solution

The fourth proportional to 5,311.08, 7,926.45 and 5,172.84 is: 7,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.08 : 7,926.45 = 5,172.84 : x
  2. Step 2: Convert to fraction form
    5,311.08/7,926.45 = 5,172.84/x
  3. Step 3: Cross multiply
    5,311.08x = 7,926.45 × 5,172.84
  4. Step 4: Simplify right side
    5,311.08x = 41,002,257.62
  5. Step 5: Solve for x
    x = 41,002,257.62/5,311.08
  6. Step 6: Final answer
    x = 7,720.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.