Home / 3,451.92-5,178.33-1,261.68

Finding the Fourth Proportional to 3,451.92, 5,178.33 and 1,261.68

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Solution

The fourth proportional to 3,451.92, 5,178.33 and 1,261.68 is: 1,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.92 : 5,178.33 = 1,261.68 : x
  2. Step 2: Convert to fraction form
    3,451.92/5,178.33 = 1,261.68/x
  3. Step 3: Cross multiply
    3,451.92x = 5,178.33 × 1,261.68
  4. Step 4: Simplify right side
    3,451.92x = 6,533,395.39
  5. Step 5: Solve for x
    x = 6,533,395.39/3,451.92
  6. Step 6: Final answer
    x = 1,892.68

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1.5x scale

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.