Home / 1,619.04-2,429.61-889.13

Finding the Fourth Proportional to 1,619.04, 2,429.61 and 889.13

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Solution

The fourth proportional to 1,619.04, 2,429.61 and 889.13 is: 1,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.04 : 2,429.61 = 889.13 : x
  2. Step 2: Convert to fraction form
    1,619.04/2,429.61 = 889.13/x
  3. Step 3: Cross multiply
    1,619.04x = 2,429.61 × 889.13
  4. Step 4: Simplify right side
    1,619.04x = 2,160,239.14
  5. Step 5: Solve for x
    x = 2,160,239.14/1,619.04
  6. Step 6: Final answer
    x = 1,334.27

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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.