Home / 1,619.19-2,233.17-1,029.51

Finding the Fourth Proportional to 1,619.19, 2,233.17 and 1,029.51

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Solution

The fourth proportional to 1,619.19, 2,233.17 and 1,029.51 is: 1,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.19 : 2,233.17 = 1,029.51 : x
  2. Step 2: Convert to fraction form
    1,619.19/2,233.17 = 1,029.51/x
  3. Step 3: Cross multiply
    1,619.19x = 2,233.17 × 1,029.51
  4. Step 4: Simplify right side
    1,619.19x = 2,299,070.85
  5. Step 5: Solve for x
    x = 2,299,070.85/1,619.19
  6. Step 6: Final answer
    x = 1,419.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.