Home / 3,921.02-5,878.67-1,839.95

Finding the Fourth Proportional to 3,921.02, 5,878.67 and 1,839.95

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Solution

The fourth proportional to 3,921.02, 5,878.67 and 1,839.95 is: 2,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.02 : 5,878.67 = 1,839.95 : x
  2. Step 2: Convert to fraction form
    3,921.02/5,878.67 = 1,839.95/x
  3. Step 3: Cross multiply
    3,921.02x = 5,878.67 × 1,839.95
  4. Step 4: Simplify right side
    3,921.02x = 10,816,420.27
  5. Step 5: Solve for x
    x = 10,816,420.27/3,921.02
  6. Step 6: Final answer
    x = 2,758.58

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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.