Home / 1,405.27-2,107.94-365.29

Finding the Fourth Proportional to 1,405.27, 2,107.94 and 365.29

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Solution

The fourth proportional to 1,405.27, 2,107.94 and 365.29 is: 547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.27 : 2,107.94 = 365.29 : x
  2. Step 2: Convert to fraction form
    1,405.27/2,107.94 = 365.29/x
  3. Step 3: Cross multiply
    1,405.27x = 2,107.94 × 365.29
  4. Step 4: Simplify right side
    1,405.27x = 770,009.40
  5. Step 5: Solve for x
    x = 770,009.40/1,405.27
  6. Step 6: Final answer
    x = 547.94

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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.