Home / 3,801.07-5,245.42-2,122.50

Finding the Fourth Proportional to 3,801.07, 5,245.42 and 2,122.50

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Solution

The fourth proportional to 3,801.07, 5,245.42 and 2,122.50 is: 2,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.07 : 5,245.42 = 2,122.50 : x
  2. Step 2: Convert to fraction form
    3,801.07/5,245.42 = 2,122.50/x
  3. Step 3: Cross multiply
    3,801.07x = 5,245.42 × 2,122.50
  4. Step 4: Simplify right side
    3,801.07x = 11,133,426.27
  5. Step 5: Solve for x
    x = 11,133,426.27/3,801.07
  6. Step 6: Final answer
    x = 2,929.03

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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.