Home / 1,491.36-2,234.80-1,181.96

Finding the Fourth Proportional to 1,491.36, 2,234.80 and 1,181.96

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Solution

The fourth proportional to 1,491.36, 2,234.80 and 1,181.96 is: 1,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.36 : 2,234.80 = 1,181.96 : x
  2. Step 2: Convert to fraction form
    1,491.36/2,234.80 = 1,181.96/x
  3. Step 3: Cross multiply
    1,491.36x = 2,234.80 × 1,181.96
  4. Step 4: Simplify right side
    1,491.36x = 2,641,444.21
  5. Step 5: Solve for x
    x = 2,641,444.21/1,491.36
  6. Step 6: Final answer
    x = 1,771.16

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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.