Home / 3,191.47-4,788.05-1,459.69

Finding the Fourth Proportional to 3,191.47, 4,788.05 and 1,459.69

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Solution

The fourth proportional to 3,191.47, 4,788.05 and 1,459.69 is: 2,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.47 : 4,788.05 = 1,459.69 : x
  2. Step 2: Convert to fraction form
    3,191.47/4,788.05 = 1,459.69/x
  3. Step 3: Cross multiply
    3,191.47x = 4,788.05 × 1,459.69
  4. Step 4: Simplify right side
    3,191.47x = 6,989,049.44
  5. Step 5: Solve for x
    x = 6,989,049.44/3,191.47
  6. Step 6: Final answer
    x = 2,189.92

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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.