Home / 5,305.82-7,319.29-3,179.66

Finding the Fourth Proportional to 5,305.82, 7,319.29 and 3,179.66

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Solution

The fourth proportional to 5,305.82, 7,319.29 and 3,179.66 is: 4,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.82 : 7,319.29 = 3,179.66 : x
  2. Step 2: Convert to fraction form
    5,305.82/7,319.29 = 3,179.66/x
  3. Step 3: Cross multiply
    5,305.82x = 7,319.29 × 3,179.66
  4. Step 4: Simplify right side
    5,305.82x = 23,272,853.64
  5. Step 5: Solve for x
    x = 23,272,853.64/5,305.82
  6. Step 6: Final answer
    x = 4,386.29

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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.