Home / 3,801.69-5,246.29-2,122.99

Finding the Fourth Proportional to 3,801.69, 5,246.29 and 2,122.99

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Solution

The fourth proportional to 3,801.69, 5,246.29 and 2,122.99 is: 2,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.69 : 5,246.29 = 2,122.99 : x
  2. Step 2: Convert to fraction form
    3,801.69/5,246.29 = 2,122.99/x
  3. Step 3: Cross multiply
    3,801.69x = 5,246.29 × 2,122.99
  4. Step 4: Simplify right side
    3,801.69x = 11,137,821.21
  5. Step 5: Solve for x
    x = 11,137,821.21/3,801.69
  6. Step 6: Final answer
    x = 2,929.70

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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.