Home / 3,179.30-4,387.10-1,852.72

Finding the Fourth Proportional to 3,179.30, 4,387.10 and 1,852.72

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Solution

The fourth proportional to 3,179.30, 4,387.10 and 1,852.72 is: 2,556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.30 : 4,387.10 = 1,852.72 : x
  2. Step 2: Convert to fraction form
    3,179.30/4,387.10 = 1,852.72/x
  3. Step 3: Cross multiply
    3,179.30x = 4,387.10 × 1,852.72
  4. Step 4: Simplify right side
    3,179.30x = 8,128,047.68
  5. Step 5: Solve for x
    x = 8,128,047.68/3,179.30
  6. Step 6: Final answer
    x = 2,556.56

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1.5x scale

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.