Home / 5,781.60-8,672.82-1,885.84

Finding the Fourth Proportional to 5,781.60, 8,672.82 and 1,885.84

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Solution

The fourth proportional to 5,781.60, 8,672.82 and 1,885.84 is: 2,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.60 : 8,672.82 = 1,885.84 : x
  2. Step 2: Convert to fraction form
    5,781.60/8,672.82 = 1,885.84/x
  3. Step 3: Cross multiply
    5,781.60x = 8,672.82 × 1,885.84
  4. Step 4: Simplify right side
    5,781.60x = 16,355,550.87
  5. Step 5: Solve for x
    x = 16,355,550.87/5,781.60
  6. Step 6: Final answer
    x = 2,828.90

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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.