Home / 5,189.13-7,784.00-1,491.28

Finding the Fourth Proportional to 5,189.13, 7,784.00 and 1,491.28

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Solution

The fourth proportional to 5,189.13, 7,784.00 and 1,491.28 is: 2,237.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.13 : 7,784.00 = 1,491.28 : x
  2. Step 2: Convert to fraction form
    5,189.13/7,784.00 = 1,491.28/x
  3. Step 3: Cross multiply
    5,189.13x = 7,784.00 × 1,491.28
  4. Step 4: Simplify right side
    5,189.13x = 11,608,102.20
  5. Step 5: Solve for x
    x = 11,608,102.20/5,189.13
  6. Step 6: Final answer
    x = 2,237.00

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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.