Home / 5,579.60-7,690.86-3,786.53

Finding the Fourth Proportional to 5,579.60, 7,690.86 and 3,786.53

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Solution

The fourth proportional to 5,579.60, 7,690.86 and 3,786.53 is: 5,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.60 : 7,690.86 = 3,786.53 : x
  2. Step 2: Convert to fraction form
    5,579.60/7,690.86 = 3,786.53/x
  3. Step 3: Cross multiply
    5,579.60x = 7,690.86 × 3,786.53
  4. Step 4: Simplify right side
    5,579.60x = 29,121,633.66
  5. Step 5: Solve for x
    x = 29,121,633.66/5,579.60
  6. Step 6: Final answer
    x = 5,219.31

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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.