Home / 5,619.88-7,751.56-3,380.94

Finding the Fourth Proportional to 5,619.88, 7,751.56 and 3,380.94

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Solution

The fourth proportional to 5,619.88, 7,751.56 and 3,380.94 is: 4,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.88 : 7,751.56 = 3,380.94 : x
  2. Step 2: Convert to fraction form
    5,619.88/7,751.56 = 3,380.94/x
  3. Step 3: Cross multiply
    5,619.88x = 7,751.56 × 3,380.94
  4. Step 4: Simplify right side
    5,619.88x = 26,207,559.27
  5. Step 5: Solve for x
    x = 26,207,559.27/5,619.88
  6. Step 6: Final answer
    x = 4,663.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.