Home / 2,782.08-4,173.39-933.21

Finding the Fourth Proportional to 2,782.08, 4,173.39 and 933.21

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Solution

The fourth proportional to 2,782.08, 4,173.39 and 933.21 is: 1,399.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.08 : 4,173.39 = 933.21 : x
  2. Step 2: Convert to fraction form
    2,782.08/4,173.39 = 933.21/x
  3. Step 3: Cross multiply
    2,782.08x = 4,173.39 × 933.21
  4. Step 4: Simplify right side
    2,782.08x = 3,894,649.28
  5. Step 5: Solve for x
    x = 3,894,649.28/2,782.08
  6. Step 6: Final answer
    x = 1,399.91

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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.