Home / 3,538.80-4,883.67-2,122.72

Finding the Fourth Proportional to 3,538.80, 4,883.67 and 2,122.72

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Solution

The fourth proportional to 3,538.80, 4,883.67 and 2,122.72 is: 2,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.80 : 4,883.67 = 2,122.72 : x
  2. Step 2: Convert to fraction form
    3,538.80/4,883.67 = 2,122.72/x
  3. Step 3: Cross multiply
    3,538.80x = 4,883.67 × 2,122.72
  4. Step 4: Simplify right side
    3,538.80x = 10,366,651.77
  5. Step 5: Solve for x
    x = 10,366,651.77/3,538.80
  6. Step 6: Final answer
    x = 2,929.43

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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.