Home / 3,821.80-5,276.38-2,497.72

Finding the Fourth Proportional to 3,821.80, 5,276.38 and 2,497.72

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Solution

The fourth proportional to 3,821.80, 5,276.38 and 2,497.72 is: 3,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.80 : 5,276.38 = 2,497.72 : x
  2. Step 2: Convert to fraction form
    3,821.80/5,276.38 = 2,497.72/x
  3. Step 3: Cross multiply
    3,821.80x = 5,276.38 × 2,497.72
  4. Step 4: Simplify right side
    3,821.80x = 13,178,919.85
  5. Step 5: Solve for x
    x = 13,178,919.85/3,821.80
  6. Step 6: Final answer
    x = 3,448.35

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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.