Home / 3,820.26-5,730.45-1,223.20

Finding the Fourth Proportional to 3,820.26, 5,730.45 and 1,223.20

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Solution

The fourth proportional to 3,820.26, 5,730.45 and 1,223.20 is: 1,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.26 : 5,730.45 = 1,223.20 : x
  2. Step 2: Convert to fraction form
    3,820.26/5,730.45 = 1,223.20/x
  3. Step 3: Cross multiply
    3,820.26x = 5,730.45 × 1,223.20
  4. Step 4: Simplify right side
    3,820.26x = 7,009,489.02
  5. Step 5: Solve for x
    x = 7,009,489.02/3,820.26
  6. Step 6: Final answer
    x = 1,834.82

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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.