Home / 3,821.02-5,731.61-1,223.95

Finding the Fourth Proportional to 3,821.02, 5,731.61 and 1,223.95

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Solution

The fourth proportional to 3,821.02, 5,731.61 and 1,223.95 is: 1,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.02 : 5,731.61 = 1,223.95 : x
  2. Step 2: Convert to fraction form
    3,821.02/5,731.61 = 1,223.95/x
  3. Step 3: Cross multiply
    3,821.02x = 5,731.61 × 1,223.95
  4. Step 4: Simplify right side
    3,821.02x = 7,015,204.06
  5. Step 5: Solve for x
    x = 7,015,204.06/3,821.02
  6. Step 6: Final answer
    x = 1,835.95

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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.