Home / 5,811.31-8,716.65-3,408.36

Finding the Fourth Proportional to 5,811.31, 8,716.65 and 3,408.36

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Solution

The fourth proportional to 5,811.31, 8,716.65 and 3,408.36 is: 5,112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.31 : 8,716.65 = 3,408.36 : x
  2. Step 2: Convert to fraction form
    5,811.31/8,716.65 = 3,408.36/x
  3. Step 3: Cross multiply
    5,811.31x = 8,716.65 × 3,408.36
  4. Step 4: Simplify right side
    5,811.31x = 29,709,484.76
  5. Step 5: Solve for x
    x = 29,709,484.76/5,811.31
  6. Step 6: Final answer
    x = 5,112.36

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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.