Home / 1,436.42-2,149.96-943.26

Finding the Fourth Proportional to 1,436.42, 2,149.96 and 943.26

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Solution

The fourth proportional to 1,436.42, 2,149.96 and 943.26 is: 1,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.42 : 2,149.96 = 943.26 : x
  2. Step 2: Convert to fraction form
    1,436.42/2,149.96 = 943.26/x
  3. Step 3: Cross multiply
    1,436.42x = 2,149.96 × 943.26
  4. Step 4: Simplify right side
    1,436.42x = 2,027,971.27
  5. Step 5: Solve for x
    x = 2,027,971.27/1,436.42
  6. Step 6: Final answer
    x = 1,411.82

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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.