Home / 3,821.04-5,271.39-2,405.34

Finding the Fourth Proportional to 3,821.04, 5,271.39 and 2,405.34

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Solution

The fourth proportional to 3,821.04, 5,271.39 and 2,405.34 is: 3,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.04 : 5,271.39 = 2,405.34 : x
  2. Step 2: Convert to fraction form
    3,821.04/5,271.39 = 2,405.34/x
  3. Step 3: Cross multiply
    3,821.04x = 5,271.39 × 2,405.34
  4. Step 4: Simplify right side
    3,821.04x = 12,679,485.22
  5. Step 5: Solve for x
    x = 12,679,485.22/3,821.04
  6. Step 6: Final answer
    x = 3,318.33

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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.