Home / 3,498.68-4,828.20-2,172.44

Finding the Fourth Proportional to 3,498.68, 4,828.20 and 2,172.44

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Solution

The fourth proportional to 3,498.68, 4,828.20 and 2,172.44 is: 2,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.68 : 4,828.20 = 2,172.44 : x
  2. Step 2: Convert to fraction form
    3,498.68/4,828.20 = 2,172.44/x
  3. Step 3: Cross multiply
    3,498.68x = 4,828.20 × 2,172.44
  4. Step 4: Simplify right side
    3,498.68x = 10,488,974.81
  5. Step 5: Solve for x
    x = 10,488,974.81/3,498.68
  6. Step 6: Final answer
    x = 2,997.98

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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.