Home / 1,489.13-2,232.09-1,412.22

Finding the Fourth Proportional to 1,489.13, 2,232.09 and 1,412.22

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Solution

The fourth proportional to 1,489.13, 2,232.09 and 1,412.22 is: 2,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.13 : 2,232.09 = 1,412.22 : x
  2. Step 2: Convert to fraction form
    1,489.13/2,232.09 = 1,412.22/x
  3. Step 3: Cross multiply
    1,489.13x = 2,232.09 × 1,412.22
  4. Step 4: Simplify right side
    1,489.13x = 3,152,202.14
  5. Step 5: Solve for x
    x = 3,152,202.14/1,489.13
  6. Step 6: Final answer
    x = 2,116.81

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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.