Home / 5,921.55-8,172.23-3,404.07

Finding the Fourth Proportional to 5,921.55, 8,172.23 and 3,404.07

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Solution

The fourth proportional to 5,921.55, 8,172.23 and 3,404.07 is: 4,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.55 : 8,172.23 = 3,404.07 : x
  2. Step 2: Convert to fraction form
    5,921.55/8,172.23 = 3,404.07/x
  3. Step 3: Cross multiply
    5,921.55x = 8,172.23 × 3,404.07
  4. Step 4: Simplify right side
    5,921.55x = 27,818,825.96
  5. Step 5: Solve for x
    x = 27,818,825.96/5,921.55
  6. Step 6: Final answer
    x = 4,697.90

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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.