Home / 1,727.03-2,591.31-905.11

Finding the Fourth Proportional to 1,727.03, 2,591.31 and 905.11

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Solution

The fourth proportional to 1,727.03, 2,591.31 and 905.11 is: 1,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.03 : 2,591.31 = 905.11 : x
  2. Step 2: Convert to fraction form
    1,727.03/2,591.31 = 905.11/x
  3. Step 3: Cross multiply
    1,727.03x = 2,591.31 × 905.11
  4. Step 4: Simplify right side
    1,727.03x = 2,345,417.51
  5. Step 5: Solve for x
    x = 2,345,417.51/1,727.03
  6. Step 6: Final answer
    x = 1,358.06

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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.