Home / 5,189.05-7,784.80-1,491.19

Finding the Fourth Proportional to 5,189.05, 7,784.80 and 1,491.19

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Solution

The fourth proportional to 5,189.05, 7,784.80 and 1,491.19 is: 2,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.05 : 7,784.80 = 1,491.19 : x
  2. Step 2: Convert to fraction form
    5,189.05/7,784.80 = 1,491.19/x
  3. Step 3: Cross multiply
    5,189.05x = 7,784.80 × 1,491.19
  4. Step 4: Simplify right side
    5,189.05x = 11,608,615.91
  5. Step 5: Solve for x
    x = 11,608,615.91/5,189.05
  6. Step 6: Final answer
    x = 2,237.14

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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.