Home / 5,788.35-7,987.86-3,135.60

Finding the Fourth Proportional to 5,788.35, 7,987.86 and 3,135.60

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Solution

The fourth proportional to 5,788.35, 7,987.86 and 3,135.60 is: 4,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.35 : 7,987.86 = 3,135.60 : x
  2. Step 2: Convert to fraction form
    5,788.35/7,987.86 = 3,135.60/x
  3. Step 3: Cross multiply
    5,788.35x = 7,987.86 × 3,135.60
  4. Step 4: Simplify right side
    5,788.35x = 25,046,733.82
  5. Step 5: Solve for x
    x = 25,046,733.82/5,788.35
  6. Step 6: Final answer
    x = 4,327.09

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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.