Home / 5,811.50-8,716.93-3,408.55

Finding the Fourth Proportional to 5,811.50, 8,716.93 and 3,408.55

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Solution

The fourth proportional to 5,811.50, 8,716.93 and 3,408.55 is: 5,112.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.50 : 8,716.93 = 3,408.55 : x
  2. Step 2: Convert to fraction form
    5,811.50/8,716.93 = 3,408.55/x
  3. Step 3: Cross multiply
    5,811.50x = 8,716.93 × 3,408.55
  4. Step 4: Simplify right side
    5,811.50x = 29,712,094.13
  5. Step 5: Solve for x
    x = 29,712,094.13/5,811.50
  6. Step 6: Final answer
    x = 5,112.64

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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.