Home / 3,191.42-4,787.49-1,459.82

Finding the Fourth Proportional to 3,191.42, 4,787.49 and 1,459.82

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Solution

The fourth proportional to 3,191.42, 4,787.49 and 1,459.82 is: 2,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.42 : 4,787.49 = 1,459.82 : x
  2. Step 2: Convert to fraction form
    3,191.42/4,787.49 = 1,459.82/x
  3. Step 3: Cross multiply
    3,191.42x = 4,787.49 × 1,459.82
  4. Step 4: Simplify right side
    3,191.42x = 6,988,873.65
  5. Step 5: Solve for x
    x = 6,988,873.65/3,191.42
  6. Step 6: Final answer
    x = 2,189.89

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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.