Home / 5,187.76-7,771.28-2,410.66

Finding the Fourth Proportional to 5,187.76, 7,771.28 and 2,410.66

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Solution

The fourth proportional to 5,187.76, 7,771.28 and 2,410.66 is: 3,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.76 : 7,771.28 = 2,410.66 : x
  2. Step 2: Convert to fraction form
    5,187.76/7,771.28 = 2,410.66/x
  3. Step 3: Cross multiply
    5,187.76x = 7,771.28 × 2,410.66
  4. Step 4: Simplify right side
    5,187.76x = 18,733,874.99
  5. Step 5: Solve for x
    x = 18,733,874.99/5,187.76
  6. Step 6: Final answer
    x = 3,611.17

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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.