Home / 3,179.93-4,388.34-1,782.77

Finding the Fourth Proportional to 3,179.93, 4,388.34 and 1,782.77

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Solution

The fourth proportional to 3,179.93, 4,388.34 and 1,782.77 is: 2,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.93 : 4,388.34 = 1,782.77 : x
  2. Step 2: Convert to fraction form
    3,179.93/4,388.34 = 1,782.77/x
  3. Step 3: Cross multiply
    3,179.93x = 4,388.34 × 1,782.77
  4. Step 4: Simplify right side
    3,179.93x = 7,823,400.90
  5. Step 5: Solve for x
    x = 7,823,400.90/3,179.93
  6. Step 6: Final answer
    x = 2,460.24

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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.