Home / 5,118.96-7,067.48-3,705.04

Finding the Fourth Proportional to 5,118.96, 7,067.48 and 3,705.04

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Solution

The fourth proportional to 5,118.96, 7,067.48 and 3,705.04 is: 5,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.96 : 7,067.48 = 3,705.04 : x
  2. Step 2: Convert to fraction form
    5,118.96/7,067.48 = 3,705.04/x
  3. Step 3: Cross multiply
    5,118.96x = 7,067.48 × 3,705.04
  4. Step 4: Simplify right side
    5,118.96x = 26,185,296.10
  5. Step 5: Solve for x
    x = 26,185,296.10/5,118.96
  6. Step 6: Final answer
    x = 5,115.35

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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.