Home / 3,451.70-5,175.96-1,111.28

Finding the Fourth Proportional to 3,451.70, 5,175.96 and 1,111.28

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Solution

The fourth proportional to 3,451.70, 5,175.96 and 1,111.28 is: 1,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.70 : 5,175.96 = 1,111.28 : x
  2. Step 2: Convert to fraction form
    3,451.70/5,175.96 = 1,111.28/x
  3. Step 3: Cross multiply
    3,451.70x = 5,175.96 × 1,111.28
  4. Step 4: Simplify right side
    3,451.70x = 5,751,940.83
  5. Step 5: Solve for x
    x = 5,751,940.83/3,451.70
  6. Step 6: Final answer
    x = 1,666.41

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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.