Home / 5,187.62-7,782.58-1,489.57

Finding the Fourth Proportional to 5,187.62, 7,782.58 and 1,489.57

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Solution

The fourth proportional to 5,187.62, 7,782.58 and 1,489.57 is: 2,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.62 : 7,782.58 = 1,489.57 : x
  2. Step 2: Convert to fraction form
    5,187.62/7,782.58 = 1,489.57/x
  3. Step 3: Cross multiply
    5,187.62x = 7,782.58 × 1,489.57
  4. Step 4: Simplify right side
    5,187.62x = 11,592,680.10
  5. Step 5: Solve for x
    x = 11,592,680.10/5,187.62
  6. Step 6: Final answer
    x = 2,234.68

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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.