Home / 3,538.69-4,883.52-2,122.61

Finding the Fourth Proportional to 3,538.69, 4,883.52 and 2,122.61

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Solution

The fourth proportional to 3,538.69, 4,883.52 and 2,122.61 is: 2,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.69 : 4,883.52 = 2,122.61 : x
  2. Step 2: Convert to fraction form
    3,538.69/4,883.52 = 2,122.61/x
  3. Step 3: Cross multiply
    3,538.69x = 4,883.52 × 2,122.61
  4. Step 4: Simplify right side
    3,538.69x = 10,365,808.39
  5. Step 5: Solve for x
    x = 10,365,808.39/3,538.69
  6. Step 6: Final answer
    x = 2,929.28

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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.