Home / 3,168.96-4,372.32-1,771.68

Finding the Fourth Proportional to 3,168.96, 4,372.32 and 1,771.68

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Solution

The fourth proportional to 3,168.96, 4,372.32 and 1,771.68 is: 2,444.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.96 : 4,372.32 = 1,771.68 : x
  2. Step 2: Convert to fraction form
    3,168.96/4,372.32 = 1,771.68/x
  3. Step 3: Cross multiply
    3,168.96x = 4,372.32 × 1,771.68
  4. Step 4: Simplify right side
    3,168.96x = 7,746,351.90
  5. Step 5: Solve for x
    x = 7,746,351.90/3,168.96
  6. Step 6: Final answer
    x = 2,444.45

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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.