Home / 3,179.35-4,387.29-1,762.98

Finding the Fourth Proportional to 3,179.35, 4,387.29 and 1,762.98

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Solution

The fourth proportional to 3,179.35, 4,387.29 and 1,762.98 is: 2,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.35 : 4,387.29 = 1,762.98 : x
  2. Step 2: Convert to fraction form
    3,179.35/4,387.29 = 1,762.98/x
  3. Step 3: Cross multiply
    3,179.35x = 4,387.29 × 1,762.98
  4. Step 4: Simplify right side
    3,179.35x = 7,734,725.30
  5. Step 5: Solve for x
    x = 7,734,725.30/3,179.35
  6. Step 6: Final answer
    x = 2,432.80

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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.