Home / 1,400.72-1,933.08-1,167.44

Finding the Fourth Proportional to 1,400.72, 1,933.08 and 1,167.44

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Solution

The fourth proportional to 1,400.72, 1,933.08 and 1,167.44 is: 1,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.72 : 1,933.08 = 1,167.44 : x
  2. Step 2: Convert to fraction form
    1,400.72/1,933.08 = 1,167.44/x
  3. Step 3: Cross multiply
    1,400.72x = 1,933.08 × 1,167.44
  4. Step 4: Simplify right side
    1,400.72x = 2,256,754.92
  5. Step 5: Solve for x
    x = 2,256,754.92/1,400.72
  6. Step 6: Final answer
    x = 1,611.14

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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.