Home / 3,821.07-5,266.79-2,700.57

Finding the Fourth Proportional to 3,821.07, 5,266.79 and 2,700.57

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Solution

The fourth proportional to 3,821.07, 5,266.79 and 2,700.57 is: 3,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.07 : 5,266.79 = 2,700.57 : x
  2. Step 2: Convert to fraction form
    3,821.07/5,266.79 = 2,700.57/x
  3. Step 3: Cross multiply
    3,821.07x = 5,266.79 × 2,700.57
  4. Step 4: Simplify right side
    3,821.07x = 14,223,351.45
  5. Step 5: Solve for x
    x = 14,223,351.45/3,821.07
  6. Step 6: Final answer
    x = 3,722.34

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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.