Home / 3,518.78-4,855.30-2,175.14

Finding the Fourth Proportional to 3,518.78, 4,855.30 and 2,175.14

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Solution

The fourth proportional to 3,518.78, 4,855.30 and 2,175.14 is: 3,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.78 : 4,855.30 = 2,175.14 : x
  2. Step 2: Convert to fraction form
    3,518.78/4,855.30 = 2,175.14/x
  3. Step 3: Cross multiply
    3,518.78x = 4,855.30 × 2,175.14
  4. Step 4: Simplify right side
    3,518.78x = 10,560,963.94
  5. Step 5: Solve for x
    x = 10,560,963.94/3,518.78
  6. Step 6: Final answer
    x = 3,001.32

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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.