Home / 3,031.12-4,179.70-2,400.62

Finding the Fourth Proportional to 3,031.12, 4,179.70 and 2,400.62

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Solution

The fourth proportional to 3,031.12, 4,179.70 and 2,400.62 is: 3,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.12 : 4,179.70 = 2,400.62 : x
  2. Step 2: Convert to fraction form
    3,031.12/4,179.70 = 2,400.62/x
  3. Step 3: Cross multiply
    3,031.12x = 4,179.70 × 2,400.62
  4. Step 4: Simplify right side
    3,031.12x = 10,033,871.41
  5. Step 5: Solve for x
    x = 10,033,871.41/3,031.12
  6. Step 6: Final answer
    x = 3,310.29

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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.