Home / 3,678.56-5,519.66-1,487.91

Finding the Fourth Proportional to 3,678.56, 5,519.66 and 1,487.91

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Solution

The fourth proportional to 3,678.56, 5,519.66 and 1,487.91 is: 2,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.56 : 5,519.66 = 1,487.91 : x
  2. Step 2: Convert to fraction form
    3,678.56/5,519.66 = 1,487.91/x
  3. Step 3: Cross multiply
    3,678.56x = 5,519.66 × 1,487.91
  4. Step 4: Simplify right side
    3,678.56x = 8,212,749.87
  5. Step 5: Solve for x
    x = 8,212,749.87/3,678.56
  6. Step 6: Final answer
    x = 2,232.60

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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.