Home / 3,451.57-5,176.63-1,111.79

Finding the Fourth Proportional to 3,451.57, 5,176.63 and 1,111.79

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Solution

The fourth proportional to 3,451.57, 5,176.63 and 1,111.79 is: 1,667.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.57 : 5,176.63 = 1,111.79 : x
  2. Step 2: Convert to fraction form
    3,451.57/5,176.63 = 1,111.79/x
  3. Step 3: Cross multiply
    3,451.57x = 5,176.63 × 1,111.79
  4. Step 4: Simplify right side
    3,451.57x = 5,755,299.58
  5. Step 5: Solve for x
    x = 5,755,299.58/3,451.57
  6. Step 6: Final answer
    x = 1,667.44

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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.