Home / 3,537.69-4,882.14-2,121.61

Finding the Fourth Proportional to 3,537.69, 4,882.14 and 2,121.61

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Solution

The fourth proportional to 3,537.69, 4,882.14 and 2,121.61 is: 2,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,537.69 : 4,882.14 = 2,121.61 : x
  2. Step 2: Convert to fraction form
    3,537.69/4,882.14 = 2,121.61/x
  3. Step 3: Cross multiply
    3,537.69x = 4,882.14 × 2,121.61
  4. Step 4: Simplify right side
    3,537.69x = 10,357,972.63
  5. Step 5: Solve for x
    x = 10,357,972.63/3,537.69
  6. Step 6: Final answer
    x = 2,927.90

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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.