Home / 5,921.80-8,172.58-3,269.48

Finding the Fourth Proportional to 5,921.80, 8,172.58 and 3,269.48

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Solution

The fourth proportional to 5,921.80, 8,172.58 and 3,269.48 is: 4,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.80 : 8,172.58 = 3,269.48 : x
  2. Step 2: Convert to fraction form
    5,921.80/8,172.58 = 3,269.48/x
  3. Step 3: Cross multiply
    5,921.80x = 8,172.58 × 3,269.48
  4. Step 4: Simplify right side
    5,921.80x = 26,720,086.86
  5. Step 5: Solve for x
    x = 26,720,086.86/5,921.80
  6. Step 6: Final answer
    x = 4,512.16

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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.