Home / 3,821.70-5,730.92-1,224.30

Finding the Fourth Proportional to 3,821.70, 5,730.92 and 1,224.30

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Solution

The fourth proportional to 3,821.70, 5,730.92 and 1,224.30 is: 1,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.70 : 5,730.92 = 1,224.30 : x
  2. Step 2: Convert to fraction form
    3,821.70/5,730.92 = 1,224.30/x
  3. Step 3: Cross multiply
    3,821.70x = 5,730.92 × 1,224.30
  4. Step 4: Simplify right side
    3,821.70x = 7,016,365.36
  5. Step 5: Solve for x
    x = 7,016,365.36/3,821.70
  6. Step 6: Final answer
    x = 1,835.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.