Home / 5,189.34-7,785.36-1,491.87

Finding the Fourth Proportional to 5,189.34, 7,785.36 and 1,491.87

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Solution

The fourth proportional to 5,189.34, 7,785.36 and 1,491.87 is: 2,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.34 : 7,785.36 = 1,491.87 : x
  2. Step 2: Convert to fraction form
    5,189.34/7,785.36 = 1,491.87/x
  3. Step 3: Cross multiply
    5,189.34x = 7,785.36 × 1,491.87
  4. Step 4: Simplify right side
    5,189.34x = 11,614,745.02
  5. Step 5: Solve for x
    x = 11,614,745.02/5,189.34
  6. Step 6: Final answer
    x = 2,238.19

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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.