Home / 3,191.35-4,787.84-1,459.57

Finding the Fourth Proportional to 3,191.35, 4,787.84 and 1,459.57

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Solution

The fourth proportional to 3,191.35, 4,787.84 and 1,459.57 is: 2,189.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.35 : 4,787.84 = 1,459.57 : x
  2. Step 2: Convert to fraction form
    3,191.35/4,787.84 = 1,459.57/x
  3. Step 3: Cross multiply
    3,191.35x = 4,787.84 × 1,459.57
  4. Step 4: Simplify right side
    3,191.35x = 6,988,187.63
  5. Step 5: Solve for x
    x = 6,988,187.63/3,191.35
  6. Step 6: Final answer
    x = 2,189.73

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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.