Home / 1,405.94-2,109.32-584.06

Finding the Fourth Proportional to 1,405.94, 2,109.32 and 584.06

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Solution

The fourth proportional to 1,405.94, 2,109.32 and 584.06 is: 876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.94 : 2,109.32 = 584.06 : x
  2. Step 2: Convert to fraction form
    1,405.94/2,109.32 = 584.06/x
  3. Step 3: Cross multiply
    1,405.94x = 2,109.32 × 584.06
  4. Step 4: Simplify right side
    1,405.94x = 1,231,969.44
  5. Step 5: Solve for x
    x = 1,231,969.44/1,405.94
  6. Step 6: Final answer
    x = 876.26

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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.