Home / 5,608.80-8,404.56-2,321.28

Finding the Fourth Proportional to 5,608.80, 8,404.56 and 2,321.28

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Solution

The fourth proportional to 5,608.80, 8,404.56 and 2,321.28 is: 3,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.80 : 8,404.56 = 2,321.28 : x
  2. Step 2: Convert to fraction form
    5,608.80/8,404.56 = 2,321.28/x
  3. Step 3: Cross multiply
    5,608.80x = 8,404.56 × 2,321.28
  4. Step 4: Simplify right side
    5,608.80x = 19,509,337.04
  5. Step 5: Solve for x
    x = 19,509,337.04/5,608.80
  6. Step 6: Final answer
    x = 3,478.34

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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.