Home / 5,921.18-8,172.63-3,404.75

Finding the Fourth Proportional to 5,921.18, 8,172.63 and 3,404.75

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Solution

The fourth proportional to 5,921.18, 8,172.63 and 3,404.75 is: 4,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.18 : 8,172.63 = 3,404.75 : x
  2. Step 2: Convert to fraction form
    5,921.18/8,172.63 = 3,404.75/x
  3. Step 3: Cross multiply
    5,921.18x = 8,172.63 × 3,404.75
  4. Step 4: Simplify right side
    5,921.18x = 27,825,767.10
  5. Step 5: Solve for x
    x = 27,825,767.10/5,921.18
  6. Step 6: Final answer
    x = 4,699.37

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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.